Climate Change and Acid Rain

The climate is the average weather pattern of the certain area experienced over a long time. This information provides us with an information on climate change and acid rain.

Summary

The climate is the average weather pattern of the certain area experienced over a long time. This information provides us with an information on climate change and acid rain.

Things to Remember

  • The climate is the average weather pattern of the certain area experienced over a long time.
  • An overall pattern of rainfall changes, some places receives an excessive rain that triggers landslides and floods while others get dry, unable to sustain settlement and agriculture.
  • In the atmosphere, these gases react with water vapour and formed their corresponding acids like H2CO3, H2SO4, and others.
  • The acidity of water bodies increases which cause the decline in the population of an aquatic organism.

MCQs

No MCQs found.

Subjective Questions

Q1:

Convert the following denary numbers into binary.

12410


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <table width="83"><tbody><tr><td>2</td> <td>124</td> </tr><tr><td>2</td> <td>62</td> </tr><tr><td>2</td> <td>31</td> </tr><tr><td>2</td> <td>15</td> </tr><tr><td>2</td> <td>7</td> </tr><tr><td>2</td> <td>3</td> </tr><tr><td>2</td> <td> <p>1</p> </td> </tr></tbody></table><p>0</p> <p>Hence,124<sub>10</sub>=1111100</p> <p>Remainder</p> <p>0</p> <p>0</p> <p>1</p> <p>1</p> <p>1</p> <p>1</p> <p>1&uarr;</p> <p></p>

Q2:

Convert the following binary numbers into the senary system.

11010


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p>
<p>11010<sub>2</sub></p>
<p>=1&times;2<sup>4</sup>+1&times;2<sup>3</sup>+0&times;2<sup>2</sup>+1&times;2<sup>1</sup>+0&times;2<sup>0</sup></p>
<p>=16+8+0+2+0</p>
<p>=26</p>

Q3:

Convert the following binary numbers into the senary system.

11010


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p>
<p>11010<sub>2</sub></p>
<p>=1&times;2<sup>4</sup>+1&times;2<sup>3</sup>+0&times;2<sup>2</sup>+1&times;2<sup>1</sup>+0&times;2<sup>0</sup></p>
<p>=16+8+0+2+0</p>
<p>=26</p>

Q4:

Convert the following binary numbers into the senary system.

 101011


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p>
<p>101011<sub>2</sub></p>
<p>=1&times;2<sup>5</sup>+0&times;2<sup>4</sup>+1&times;2<sup>3</sup>+0&times;2<sup>2</sup>+1&times;2<sup>1</sup>+1&times;2<sup>0</sup></p>
<p>=32+0+8+0+2+1</p>
<p>=43</p>

Q5:

Convert the following binary numbers into decimal numbers.

111


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p>
<p>1&times;2<sup>2</sup>+1&times;2<sup>1</sup>+1&times;2<sup>0</sup></p>
<p>=4+2+1</p>
<p>=7</p>

Q6:

Convert the following binary numbers into decimal numbers.

 1010


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p>
<p>1010<sub>2</sub>= 1&times;2<sup>3</sup>+0&times;2<sup>2</sup>+1&times;2<sup>1</sup>+0&times;2<sup>0</sup></p>
<p>=8+0+2+0</p>
<p>=10</p>

Q7:

Convert the following binary numbers into decimal numbers.

1110


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p>
<p>1110<sub>2</sub> = 1&times;2<sup>3</sup>+1&times;2<sup>2</sup>+1&times;2<sup>1</sup>+0&times;2<sup>o</sup></p>
<p>=8+4+2+0</p>
<p>= 14</p>

Q8:

Convert the following binary numbers into decimal numbers.

10101


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>1&times;2<sup>4</sup>+0&times;2<sup>3</sup>+1&times;2<sup>2</sup>+0&times;2<sup>1</sup>+1&times;2<sup>o</sup></p> <p>=16+0+4+0+1</p> <p>=21</p>

Q9:

Convert the following binary numbers into decimal numbers.

 101010


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>=1&times;2<sup>5</sup>+0&times;2<sup>4</sup>+1&times;2<sup>3</sup>+0&times;2<sup>2</sup>+1&times;2<sup>1</sup>+0&times;2<sup>0</sup></p> <p><sup>=</sup>32+0+8+0+2+0</p> <p>=42</p>

Q10:

Convert the following binary numbers into decimal numbers.

110011 


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p>
<p>1&times;2<sup>5</sup>+1&times;2<sup>4</sup>+0&times;2<sup>3</sup>+0&times;2<sup>2</sup>+1&times;2<sup>1</sup>+1&times;2<sup>0</sup></p>
<p>= 32+16+0+0+2+1</p>
<p>=51</p>

Q11:

Convert the following into decimal system

2125


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>212<sub>5</sub></p> <p>= 2&times;5<sup>2</sup>+1&times;5<sup>1</sup>+2&times;5<sup>0</sup></p> <p>= 2&times;25+1&times;5+2&times;1</p> <p>= 50+5+2</p> <p>= 57<sub>10</sub></p>

Q12:

Convert the following into decimal system:

3145


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>314<sub>5</sub></p> <p>=3&times;5<sup>2</sup>+1&times;5<sup>1</sup>+4&times;5<sup>0</sup></p> <p>= 3&times;25+1&times;5+5+4</p> <p>= 75+5+4</p> <p>= 84<sub>10</sub></p>

Q13:

Convert the following numbers into base-ten numbers.

245


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>24<sub>5</sub></p> <p>= 2&times;5<sup>1</sup>+4&times;5&deg;</p> <p>= 2&times;5+4&times;1</p> <p>=10+4</p> <p>=14<sub>10</sub></p>

Q14:

Convert the following numbers into base-ten numbers. 

3245


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>354<sub>5</sub></p> <p>= 3&times;5<sup>2</sup>+2&times;5<sup>1</sup>+4&times;5&deg;</p> <p>= 75+10+4</p> <p>= 89<sub>10</sub></p>

Q15:

Convert the decimal number into binary number. 

105


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <table width="136"><tbody><tr><td>2</td> <td>105</td> <td>1</td> </tr><tr><td>2</td> <td>52</td> <td>0</td> </tr><tr><td>2</td> <td>26</td> <td>0</td> </tr><tr><td>2</td> <td>13</td> <td>1</td> </tr><tr><td>2</td> <td>6</td> <td>0</td> </tr><tr><td>2</td> <td>3</td> <td>1</td> </tr><tr><td>2</td> <td>1</td> <td>1</td> </tr><tr><td></td> <td>0</td> <td></td> </tr></tbody></table><p>&there4; 105<sub>10</sub> = 1101001<sub>2</sub></p>

Q16:

Convert this Decimal number into binary number.

1234


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <table width="124"><tbody><tr><td> 2</td> <td> 1234</td> <td> 0</td> </tr><tr><td> 2</td> <td> 617</td> <td> 1</td> </tr><tr><td> 2</td> <td> 308</td> <td> 0</td> </tr><tr><td> 2</td> <td> 154</td> <td> 0</td> </tr><tr><td> 2</td> <td> 77</td> <td> 1</td> </tr><tr><td> 2</td> <td> 38</td> <td> 0</td> </tr><tr><td> 2</td> <td> 19</td> <td> 1</td> </tr><tr><td> 2</td> <td> 9</td> <td> 1</td> </tr><tr><td> 2</td> <td> 4</td> <td> 0</td> </tr><tr><td> 2</td> <td> 2</td> <td> 0</td> </tr></tbody></table><p> 2 1 1</p> <p> 0</p> <p>&there4; 1234<sub>10</sub> = 10011010010<sub>2</sub></p>

Q17:

Convert this decimal number into binary number.

97510


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <table width="97"><tbody><tr><td>2</td> <td>975</td> <td>1</td> </tr><tr><td>2</td> <td>487</td> <td>1</td> </tr><tr><td>2</td> <td>243</td> <td>1</td> </tr><tr><td>2</td> <td>121</td> <td>1</td> </tr><tr><td>2</td> <td>60</td> <td>0</td> </tr><tr><td>2</td> <td>30</td> <td>0</td> </tr><tr><td>2</td> <td>15</td> <td>1</td> </tr><tr><td>2</td> <td>7</td> <td>1</td> </tr><tr><td>2</td> <td>3</td> <td>1</td> </tr><tr><td></td> <td>1</td> <td></td> </tr></tbody></table><p>&there4; 975<sub>10</sub> = 1111001111<sub>2</sub></p>

Q18:

Convert the following binary number into decimal numbers.

11111111


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p>
<p>11111111<sub>2</sub></p>
<p>= 1&times;2<sup>7</sup>+ 1&times;2<sup>6</sup> + 1&times;2<sup>5</sup>+ 1&times;2<sup>4</sup> + 1&times;2<sup>3</sup> + 1&times;2<sup>2</sup> +1&times;2<sup>1</sup> + 1&times;2<sup>0</sup></p>
<p>= 128 + 64 + 32 + 16 + 8 + 4 +2 + 1</p>
<p>= 225</p>

Q19:

Convert the Binary numbers into decimal numbers.

110110110012


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>11011011001<sub>2</sub></p> <p>= 1&times;2<sup>10</sup>+1&times;2<sup>9</sup>+0&times;2<sup>8</sup>+1&times;2<sup>7</sup>+1&times;2<sup>6</sup>+0&times;2<sup>5</sup>+1&times;2<sup>4</sup>+1&times;2<sup>3</sup> +0&times;2<sup>2</sup>+0&times;2<sup>1</sup>+1&times;2<sup>0</sup></p> <p>=1050 +512 +0 +128 +64 +0 +16 +8 +0 +0 +1</p> <p>= 1751</p> <p>&there4; 11011011001<sub>2</sub> = 1751<sub>10</sub></p>

Q20:

Convert into decimal number.

1000000012


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>= 1&times;2<sup>8</sup> + 0&times;2<sup>7</sup> + 0&times;2<sup>6</sup> + 0&times;2<sup>5</sup> + 0&times;2<sup>4</sup> + 0&times;2<sup>3</sup> + 0&times;2<sup>2</sup> + 0&times;2<sup>1</sup> + 1&times;2<sup>0</sup></p> <p>= 256 + 0 + 0 +0 +0 +0 +0 +0 +1</p> <p>= 257</p> <p>&there4; 100000001<sub>2</sub> = 257<sub>10</sub></p> <p></p>

Q21:

Convert the binary numbers into decimal numbers.

10101011102


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>= 1&times; 2<sup>9</sup> + o&times;2<sup>8</sup> + 1&times;2<sup>7</sup> + 0&times;2<sup>6</sup> +1&times;2<sup>5</sup> +0&times;2<sup>4</sup> + 1&times;2<sup>3</sup> + 1&times;2<sup>2</sup> + 1&times;2<sup>1</sup> + 0&times;2<sup>0</sup></p> <p>= 512 + 0 + 128 +0 + 32 + 0 + 8 + 4 + 2 +0</p> <p>= 512 + 0 + 128 + 0 + 32 + 0 + 8 + 4 + 2 + 0</p> <p>= 686</p> <p>&there4; 1010101110<sub>2</sub> = 686<sub>10</sub></p> <p></p>

Q22:

Convert the binary number into decimal numbers.

10000100002


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>= 1&times;2<sup>9</sup>+0&times;2<sup>8</sup>+0&times;2<sup>7</sup>+0&times;2<sup>6</sup>+0&times;2<sup>5</sup>+1&times;2<sup>4</sup>+0&times;2<sup>3</sup>+0&times;2<sup>2</sup>+0&times;2<sup>1</sup> +0&times;2<sup>0</sup></p> <p>= 512 +0 +0+0+0+16+0+0+0 +0</p> <p>=528</p> <p>&there4; 1000010000<sub>2</sub> = 528<sub>10</sub></p>

Q23:

Convert the binary numbers into decimal numbers.

1011101112


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>101110111<sub>2</sub></p> <p>= 1&times;2<sup>8</sup>+ 0&times;2<sup>7</sup> + 1&times;2<sup>6</sup> + 1&times;2<sup>5</sup> + 1&times;2<sup>4</sup> +0&times;2<sup>3</sup> + 1&times;2<sup>2</sup> + 1&times;2<sup>1</sup> + 1&times;2<sup>0</sup></p> <p>= 256 + 0 + 64 + 32 + 16 + 0 + 4 + 2 +1</p> <p>=359</p> <p>&there4; 101110111<sub>2</sub> = 359<sub>10</sub></p>

Q24:

Convert the binary numbers into decimal numbers.

1000000012


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution :</p> <p>100000001<sub>2</sub></p> <p>= 1&times;2<sup>8</sup> + 0&times;2<sup>7</sup>+ 0&times;2<sup>6</sup> + 0&times;2<sup>5</sup> + 0&times;2<sup>4</sup> + 0&times;2<sup>3</sup> + 0&times;2<sup>2</sup> + 0&times;2<sup>1</sup> + 1&times;2<sup>0</sup></p> <p>= 256 + 0 +0 +0 +0 +0 +0+0 +1</p> <p>= 257</p> <p>&there4; 100000001<sub>2</sub> = 257<sub>10</sub></p>

Q25:

Convert the binary numbers into decimal numbers.

11001100112


Type: Long Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>1100110011<sub>2</sub></p> <p>= 1&times;2<sup>9</sup> + 1&times;2<sup>8</sup> + 0&times;2<sup>7</sup> + 0&times;2<sup>6</sup> + 1&times;2<sup>5</sup> + 1&times;2<sup>4</sup> + 0&times;2<sup>3</sup> + 0&times;2<sup>2</sup> + 1&times;2<sup>1</sup> + 1&times;2<sup>0</sup></p> <p>= 512 + 256 + 0 +0 + 32 + 16 + 0 +0 +2 +1</p> <p>= 819</p> <p>&there4; 1100110011<sub>2</sub> = 819<sub>10</sub></p>

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Climate Change and Acid Rain

Climate Change and Acid Rain

The climate is the average weather pattern in the certain area experienced over a long time. Unlike the weather, which is the current atmospheric condition, climate changes very little over a long period of time. So, the climate is also not static and changes due to natural factors. But natural factors account for very little and slow changes only. Due to unchecked human activities, the climate of the globe is changing much more quickly than it would do naturally. Such a change is called climate change, which is one of the greatest challenges the world community is facing in the modern time.

Effects of Climate change

  1. The overall pattern of rainfall changes, some places receive the excessive rain that triggers landslides and floods while others get dry, unable to sustain settlement and agriculture.
  2. Global temperatures rise alarmingly.
  3. It is predicted that the rising global temperature causes ice caps to melt.
  4. Sea levels are rises, leaving low areas at greater risks of flooding.
  5. Grasslands and rainforest get contracted while deserts get to expand.
  6. It also reduces the production of agriculture.

Acid rain

When the various gases like CO2, SO2, NO2, combine with rain water then their respective acids are produced. These acids react on the ground along with rain water in the cocktail form. This process is called acid rain. In the atmosphere, these gases react with water vapour and formed their corresponding acids like H2CO3, H2SO4, and others. When rainfall occurs these acids get mixed with rain and forms acid rain.

damage by acid rain

Effect of acid rain

  1. The acidity of the soil increases which causes the reduction of productivity of the soil.
  2. The acidity of water bodies increases which cause the decline in the population of an aquatic organism.
  3. The historical monuments damage because of acid rain.



Methods to control Acid Rain

  1. Environmental pollution should be controlled.
  2. An alternative source of energy should be used.
  3. SO2, CO2 and NO2 producing industries should reuse those gases.

Lesson

Environmental Degradation and its Conservation

Subject

Science

Grade

Grade 8

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