Biodiversity by Ecological Belts

Nepal has been divided into three ecological regions: - Mountains, Hills and the Terai. This note has information on biodiversity by ecological belts and various methods of conservation of biodiversity.

Summary

Nepal has been divided into three ecological regions: - Mountains, Hills and the Terai. This note has information on biodiversity by ecological belts and various methods of conservation of biodiversity.

Things to Remember

  • Nepal has been divided into three ecological regions: - mountains, hills and the Terai.
  • Since the mountain region is wet, coniferous type of vegetations like Thinguresalla, Dhoopisalla, Gobresalla, rhododendron, Bhojpatra, etc. are found here.
  • The Terai region is rich in vegetation.
  • People should have knowledge on biodiversity of each on geographical region.

MCQs

No MCQs found.

Subjective Questions

Q1:

At what rate will rs.600  lent for two years will pay an interest of Rs. 72 ?


Type: Very_short Difficulty: Easy

Show/Hide Answer
Answer: <p>Here, principal (P) = Rs. 600 , Time (T) = 2 years , <br>Interest (I) = Rs 72 , Rate of interest (R) = ?<br>We know that , <br>R = I×100P×T<br> = 72×100600×2<br> = 6% Ans.</p>

Q2:

What is the total of the principal and the interest of Rs. 400 at the rate of 10 12% for 1 year 9 month ?


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Here , principal (P) = Rs. 400 , R = 10 12% <br>Time (T) = 1 year 9 months = 1 year + 912 years = 74 years. <br>Interest(I) = ?<br>We know that , <br>I = P×T×R100 = 400×7×214×2×100 = Rs. 73.5 <br><br>Now , amount = principal + Interest = Rs. 400 + Rs. 73.5 = Rs. 473.50 Ans.</p>

Q3:

Att what rate of interest will rs. 640 lent for 3 years pay an interest of Rs. 124. 80?


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Here , Principal (P)= Rs. 640 , Time(T) = 3 years , <br>Interest (I) = Rs. 124.80 , Rate of ineterst (R) = ?<br><br>We know that , <br>R = I×100PT = 124.80×100640×3 = 6.5%<br><br> Interest Rate (R) = 6.5%</p>

Q4:

Find the principal if the interest is Rs. 192 in four years at the interest rate of 8%.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Here , Time (T) = 4 years , (I) = Rs. 192<br>Rate of interest (R) = 8% , Principal (P) = ?<br><br>We know that<br>P = I×100TR = 192×1004×8 = Rs. 600 Ans.</p>

Q5:

How long will it take to get Rs. 642 as the sum of principal and interest after lending Rs. 480 at the rate of 7 12 % ?


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Here , Rate of interest (R) = 7 12 = 152 %<br>Principal (P) = Rs. 480 Time(T) = ?<br>Amount (A) = Rs. 642 - Rs. 480 = Rs. 162 <br>We know that , <br>T = I×100PR <br> = 162×100480×15/2 <br> = 16200×2480×15 <br> = 412 Years.</p>

Q6:

How much money was deposited 20 yeras before if it amounts to Rs. 2000 at 2 12% rate of interest ?


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Rate of interest (R) = 2 12 = 52% , Amounts (A) = Rs. 2000 , <br><br>Time (T) = 20 years , Principal(P) = ?<br>We know that , <br>P = A×100100+TR <br> = 2000×1000100+20×52<br> = 200000100+50<br> = 4 12 years. Ans.</p>

Q7:

A borrows from the lenders B and C the amount of Rs. 1000 and Rs. 1200 respectively at the rate of 12% per annum and 7.5% per annum respectively After how long will the amount to be paid be equal for both of them?


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>For Landers B <br>Principal (P) = Rs. 1000<br>Rate of interest (R) = 12%<br>Let , time (T) = x year<br>Interest (I<sub>1</sub>) = PTR100<br>= 1000×x×12100<br>= 120x. <br>For landers C<br>Principal (P) = Rs. 1200<br>Rate of interest (R) = 7.5%<br>Let , time (T) = x year<br>Interest (I<sub>2</sub>) = PTR100<br>= 1200×x×7.5100<br>= 90x<br>Amount to be paid by C , <br>(A<sub>2</sub>) = P + I<sub>2</sub> = 1200 + 90x<br><br><br><br><br>Amount to be paid by B , <br>(A<sub>1</sub>) = P + I<sub>1</sub> = 1000 + 120x<br>By question , <br>A<sub>1</sub> = A<sub>2<br></sub>1000 + 120x = 1200 + 90x<br>or , 120x - 90x = 1200 - 1000<br>or , 30x = 200<br>or , x = 20030 = 203 = 6 23 years.<br><br>Hence, amount to be paid by B and C equal will be after 6 23 years.</p>

Q8:

X lents equal amount to both Y and Z. But he fixed 8% rate of interest to Y and 12% rate of interest to Z. If after 17 years Z pays Rs. 140 more than Y , what was the amount lent ?


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>For Y<br>Let , Principal (P) = Rs. x <br>Rate (R) = 8%<br>Time (T) = 17 years. <br>Interest (I<sub>1</sub>) = PTR100<br> = x×17×8100<br> = 136x100<br><br>For Z<br>Let , principal (P) = Rs. x<br>Rate (R) = 12%<br>Time (T) = 17 years<br>Interest(I<sub>2</sub>) = PTR100<br> = x×17×12100<br> = 204x100<br><br>Here , Z pays Rs. 140 more than Y. <br>or , I<sub>2</sub> = I<sub>1 + </sub>140<br>or , 204x100 - 136x100 = 140 <br>or , 204x136x100 = 140<br>or , 68x100 = 140 <br>or , 68x = 140 × 100<br>or , x = 140×10068 = Rs. 205.88<br><br>Hence , X lends Rs. 205.88 to both Y and Z respectively. Ans.</p>

Q9:

A merchant lends Rs. 16500 to two persons A and B. He fixes the rate of interest 6% for 4 12% for 5 years to B. But both of them paid the same interest , what was the amount borrowed by A and B.


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>For A , <br>Let P = Rs.x<br>Rate(R) = 6%<br>Time (T) = 4 12 = 4.5 years<br>Interest (I<sub>1</sub>) = ?<br>Here , I = PTR100<br>= x×4.5×6100<br>= 27x100<br><br>For B<br>P = Rs. (16500 - x)<br>Rate (r) = 4.5%<br>Time (T) = 5 years<br>Interest(I<sub>2</sub>) = ?<br>Here , I<sub>2 </sub>= PTR100<br>= 16500x×5×4.5100<br>= 22.5(16500x)100<br><br>According to question , <br>I<sub>1</sub> = I<sub>2<br></sub>or , 27x100 = 22.5(16500x)100<br>or , 27x = 371250 - 22.5x<br>or , 27x + 22.5x = 371250<br>or , x = 37125049.5 = 7500. <br>Hence , the amount borrowed by A = 7500 Ans <br>The amount bowwored by B = Rs. (16500 - 7500) = Rs. 9000 Ans.</p>

Q10:

How many paisas per rupee per month will Rs 250 amounts to Rs 920 in 8 months?


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>P = Rs. 250 A = Rs. 290 T = 812 = 23 years , <br><br>Here , I = a - P = 290 - 250 = Rs. 40 , R = ?<br>We know that , <br>R = I×100PT<br> = 40×100250×23<br> = 4000×3500 <br> = 24%. <br><br>Here , interest of Rs. 100 for 12 month = Rs. 24<br>Interest of Re. 1 for month <br>= Rs. 24100×12<br>= Rs. 0.02</p>

Q11:

An amount increases itself 120 of it in 6 months, in how many years will Rs. 400 amount to Rs. 600 ?


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Time (T) = 612 = 12 years.<br>Principal = P = x(suppose)<br>Then , interest I = 120 × x = x20<br>By formula , R = I×100P×T = x20×x×12 = 10%<br><br>To calculate the time ,<br>P = Rs. 400<br>A = Rs. 600<br>R = 10%<br>T = ?<br><br>By formula ,<br>P = A×100100+TR<br>or , 400 = 600×100100+T×10<br>or , 400 = 6000010(10+T)<br>or , 400 = 600010+T<br>4000 + 400T = 6000<br>or , 400T = 6000 - 4000<br>or , 400T = 2000<br> T = 2000400 = 5 years Ans.</p>

Q12:

 A sum of money that increases 325 each year amount to Rs. 4800 in 5 years , then what was the principal  ?


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Principal = P = ?<br>Rate = R = 325 × 100% = 12%<br>Time = T = 5 years ,<br>Amount = A = Rs. 4800<br>By formula ,<br>P = A×100100+TR<br> = 4800×100100+5×12<br> = 480000160 = Rs. 300 Ans.</p>

Q13:

In a bank , sum of money increases \frac[1}{20} of the principal each year and amounts to Rs. 1500 in 10 years , what was the principal ?


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Principal = P = ?<br>Rate = R = 120 × 100% = 5%<br>Time = T = 10 years ,<br>Amount = A = Rs. 1500<br><br>By formula ,<br>P = A×100100+TR<br> = 1500×100100+10×5<br> = 150000150<br> = Rs. 1000 Ans.. </p>

Q14:

How long will Rs. 500 amount to Rs. 500 to Rs. 1000 if the interest increases by 110 of the principal each year ?


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Here , <br>Rate = 110 × 100 = 10%<br>Principal = P = Rs. 500<br>Amount = A = Rs. 1000<br>Interest = I = A-P = Rs. 1000 - Rs. 500 = Rs. 500<br><br>By formula , <br>T = I×100P×R <br> = 500×100500×10<br> = 10 years. Ans. </p>

Q15:

What amount of money deposited in a finance company increases Rs. 40.50 per year as simple interest when the interest rate increases from          612% to 8?


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Increase interest within ine year = Rs. 40.50<br>Increased rate of interest = 8% - 6.5% = 1.5%<br>Time(T) = 1 yera , Principal (P) = ?<br><br>We know that , <br>P = I×100TR<br> = 40.50×1001×1.5<br> = Rs. 2700 .</p>

Q16:

If the total simple interest at the same rate of interest on Rs.400 in 5 years and on Rs.600 in 4 years is Rs. 132 , what was the rate of interest ?


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>First conditon <br><br>Principal(P) = Rs. 400 , Time (T) = 5 year and interest rate (R) = x% (say)<br>Here , Interest (I<sub>1</sub>) = PTR100 = 400×5×x100 = 20x<br><br>Second Condition<br>Principal(P) = Rs. 600 , Time (T) = 4 years , Interest Rate (R) = x%<br>Interest(I<sub>2</sub>) = PTR100 = 600×4×x100 = 24x<br><br>By question , I<sub>1</sub> + I<sub>2 = </sub>132<br>or , 20x + 24x = 132<br>or , 44x =132<br>or , x = 13244 = 3<br><br>Hence , interest rate (R) = 3% per annum.</p>

Q17:

At what rate of interest will a sum of money be double in 2o years ? Another sum of money trebles in 25 years in 25 years , which of this rate of interest higher and by how much ?


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>In first condtion , P = x(suppose) , A = 2x , T = 20 years , <br>I = A- P - 2x - x = x<br>We know that , <br>R = I×100PT = x×100x×200 = 5% Ans. <br><br>In second condition<br>p = x (suppose) A = 3x , I = A - P = 3x -x = 2x , T = 25 years , R = ?<br><br>We know that , <br>R = I×100PT = 2x×100x×25 = 8%<br><br>DIfference in interest rate = 8% - 5% = 3%. </p>

Q18:

A sum of money doubles itself in 20  years , how long will it be trebled at the same rate of interest ?


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>In first condition<br>Principal (P) = x (suppose) , Then amount (A) = 2x<br>Here , I = A-P = 2x - x = x , Time (T) = 20 years , Interest rate (R) = ?<br><br>By formula , R = I×100PT = x×100x×20 =5%<br><br>In second condition<br>Principal (P) = x (suppose) , Then amount (A) = 3x , <br>Interest (I) = A - P = 3x - x = 2<br><br>Here , R = 5% , Time (T) = ?<br>By formula , T = I×100PR = 2x×100x×5 = 40.</p>

Q19:

In what time will the money lent at Rs. 10 simple interst on Rs.  50 per year will be trebled itself ?


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Here , Interest on Rs. 50 for 1 year is RS. 10<br>Interest on Rs. 1 for 1 year is Rs. 10 / 50<br>Interest on Rs. 100 for 1 year is Rs. Rs. 1050 × 100 = Rs. 20<br><br> R = 20% per year<br>Let , P = x<br>Amount (A) = x and<br>Interest (I) = A - P = 3x - x = 2x<br>Time (T) = ?<br>We know that , <br>T = I×100P×R<br> = 2x×100x×20 = 10 years.</p>

Q20:

How long will it take for a sum of money to be 15 of the amount  at the rate of 5% simple interest ?


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Interest rate (R) = 5% , Amount(A) = x (suppose) , <br><br>Then, interest (I) = 15 × x = x5<br>Here , P = A - I = x - x5 = 4x5 , Time (T)= ?<br><br>We know that , <br>T = I×100PR <br> = x5×1004x5×5<br> = 100x20x<br> = 5 years.</p>

Videos

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Biodiversity by Ecological Belts

Biodiversity by Ecological Belts

There is diversity in the physical features of Nepal. Nepal has been divided into three ecological regions: - mountains, hills and the Terai. Each region has different natural environment and socio-cultural environment.

  1. Mountain region

    Since the mountain region is wet, coniferous type of vegetations like Thinguresalla, Dhoopisalla, Gobresalla, rhododendron, Bhojpatra, etc. are found here. The plants are short and bent with thorns. Various kinds of important herbs like Timur, Chiraito, Panchaule, Padmachal, Jatamasi, etc. are available. Biodiversity of animals and birds is limited because of the cold climate. The wild animals available here are musk-deer, Thar, Ghoral, Siru, Habre, snow-leopard, etc. animals like wild boar, leopard and birds like Danphe, Munal, Chilme, Kolkras, Kalij, etc. live here. People rear sheep and yak in this region.

  2. Hill region

    Hill region is very rich in biodiversity. Forests of Uttis, Katus and Chilaune are found here. Due to the altitude and topography, different types of plants like Sal, Simal, Peepal, Bar, Sallo, bamboo, etc. are found here. At higher altitude, the crops like maize, barley, buck-wheat, millet, etc. are cultivated. In lower part and the plain, the crops like paddy, maize, mas, wheat, etc. are produced. Mango, pear, orange, banana, lemon, etc. are main fruits of this region. Different sorts of animals and plants are found here due to topography and diverse climate. Bear, leopard, deer, monkey, chital, wild cat, etc. live in this region. Besides this, hilly region is rich in birds like kalij, eagle, hawk, dove, parrot, etc.

  3. Terai region

    The Terai region is rich in vegetation. The plain has hot evergreen forest. There is deciduous forest in the lower part of Mahabharat, tar and valley. In different parts from west to east, plants like Sal, Sisau, Saj, Satisal, Khayar, Harro, Barro, etc. are found. Different types of animals and birds are found here. This region is the habitat of mammals like tiger, elephant, wild buffalo, leopard, deer, rhino, etc. are available here. Apart from these animals, there are bears, monkeys, boars, mugar, pythons, etc. plenty of peacocks, wild cocks, saras, hawks, giant hornbills, etc. also live here.


Methods of conservation of biodiversity

Considering the importance of biodiversity, it is essential to preserve the biodiversity of each geographical region. The methods of conservation of each region will be different.

The following methods can be adopted for conserving the biodiversity: -

  1. Knowledge of biodiversity

    People should have knowledge on biodiversity of each on geographical region. The place, habitat and status of the creatures should be found out in order to plan the conservation programmes.

  2. Information on biodiversity

    Local people on each region must get information on biodiversity. Their role on the conservation programme will be clear when they know the importance of biodiversity.

  3. Public participation

    Local organization, VDC, municipality, community, civic society must participate in the conservation work jointly. They should prepare plans and implement them. Local people must participate in this work so that they could obey the rules on the conservation.

  4. Religious value

    Various kinds of trees such as Peepal, banyan, basil, bel, lotus, etc. are considered very important in our religion and tradition. Animals like lion, elephant, tiger, peacock, monkey, rat, etc. are also religiously important. So, religious and cultural traditions should be utilized for the protection of biodiversity.

  5. Rules and regulations

    Rules and regulations are very important for the conservation of biodiversity. People should be awared of such laws. The laws should encourage local agencies o conduct conservation programmes.

  6. Income generation

    Local people must have knowledge on the importance of biodiversity and the methods of utilization. The raw materials from various plants and animals biodiversity can be used for income-generating activities without degrading them. The people should be trained properly to use them sustainably.

  7. Change in consumption pattern

    While using natural resources, people must not forget sustainable consumption pattern. They have to reduce their use as far as applicable. If possible, we have to emphasize on re-use and re-cycle. We have to stop destroying the existence of biodiversity in order to fulfil our need selfishly.

  8. Develop positive attitude

    It is essential for the people to take positive attitude on biodiversity. They should be friendly to the biodiversity and must not exploit it for personal gain and immediate need. They must keep in mind that there are many generations to come and use it for the fulfillment of their basic needs. The right of future generation must not be violated while using resources for present generation.

Lesson

Biodiversity

Subject

EPH

Grade

Grade 10

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