Deforestation
BIOXII16: ENVIRONMENTAL ISSUES

345152 Assertion :
Deforestation is one main factor contributing to global warming .
Reason :
Beside carbon dioxide, methane andCFC's are also included under green housegases.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
BIOXII16: ENVIRONMENTAL ISSUES

345153 Why deforestation causes enhanced carbon dioxide concentration?

1 Cutting trees will cause increase in respiration among organism
2 Deforestation will cause increase in temperatue of atmosphere
3 Trees that could hold a lot of carbon in their biomass are lost with deforestation.
4 None of the above
BIOXII16: ENVIRONMENTAL ISSUES

345154 Choose the correct sequence showing traditional way of slash and burn agriculture.
(a) Land recovers forming forest
(b) The farmers cut down the trees of the forest and burn the plant remains
(c) Land is then used for farming or cattle grazing
(d) The ash is used as a fertiliser
(e) The area is left for several years

1 a,b,c,d,e
2 b,d,c,a,e
3 b,c,d,e,a
4 b,d,c,e,a
BIOXII16: ENVIRONMENTAL ISSUES

345155 Which of the following are effects of deforestation?

1 Loss of biodiversity
2 Disturbs hydrologic cycle
3 Soil erosion
4 All of the above.
BIOXII16: ENVIRONMENTAL ISSUES

345152 Assertion :
Deforestation is one main factor contributing to global warming .
Reason :
Beside carbon dioxide, methane andCFC's are also included under green housegases.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
BIOXII16: ENVIRONMENTAL ISSUES

345153 Why deforestation causes enhanced carbon dioxide concentration?

1 Cutting trees will cause increase in respiration among organism
2 Deforestation will cause increase in temperatue of atmosphere
3 Trees that could hold a lot of carbon in their biomass are lost with deforestation.
4 None of the above
BIOXII16: ENVIRONMENTAL ISSUES

345154 Choose the correct sequence showing traditional way of slash and burn agriculture.
(a) Land recovers forming forest
(b) The farmers cut down the trees of the forest and burn the plant remains
(c) Land is then used for farming or cattle grazing
(d) The ash is used as a fertiliser
(e) The area is left for several years

1 a,b,c,d,e
2 b,d,c,a,e
3 b,c,d,e,a
4 b,d,c,e,a
BIOXII16: ENVIRONMENTAL ISSUES

345155 Which of the following are effects of deforestation?

1 Loss of biodiversity
2 Disturbs hydrologic cycle
3 Soil erosion
4 All of the above.
BIOXII16: ENVIRONMENTAL ISSUES

345152 Assertion :
Deforestation is one main factor contributing to global warming .
Reason :
Beside carbon dioxide, methane andCFC's are also included under green housegases.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
BIOXII16: ENVIRONMENTAL ISSUES

345153 Why deforestation causes enhanced carbon dioxide concentration?

1 Cutting trees will cause increase in respiration among organism
2 Deforestation will cause increase in temperatue of atmosphere
3 Trees that could hold a lot of carbon in their biomass are lost with deforestation.
4 None of the above
BIOXII16: ENVIRONMENTAL ISSUES

345154 Choose the correct sequence showing traditional way of slash and burn agriculture.
(a) Land recovers forming forest
(b) The farmers cut down the trees of the forest and burn the plant remains
(c) Land is then used for farming or cattle grazing
(d) The ash is used as a fertiliser
(e) The area is left for several years

1 a,b,c,d,e
2 b,d,c,a,e
3 b,c,d,e,a
4 b,d,c,e,a
BIOXII16: ENVIRONMENTAL ISSUES

345155 Which of the following are effects of deforestation?

1 Loss of biodiversity
2 Disturbs hydrologic cycle
3 Soil erosion
4 All of the above.
BIOXII16: ENVIRONMENTAL ISSUES

345152 Assertion :
Deforestation is one main factor contributing to global warming .
Reason :
Beside carbon dioxide, methane andCFC's are also included under green housegases.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
BIOXII16: ENVIRONMENTAL ISSUES

345153 Why deforestation causes enhanced carbon dioxide concentration?

1 Cutting trees will cause increase in respiration among organism
2 Deforestation will cause increase in temperatue of atmosphere
3 Trees that could hold a lot of carbon in their biomass are lost with deforestation.
4 None of the above
BIOXII16: ENVIRONMENTAL ISSUES

345154 Choose the correct sequence showing traditional way of slash and burn agriculture.
(a) Land recovers forming forest
(b) The farmers cut down the trees of the forest and burn the plant remains
(c) Land is then used for farming or cattle grazing
(d) The ash is used as a fertiliser
(e) The area is left for several years

1 a,b,c,d,e
2 b,d,c,a,e
3 b,c,d,e,a
4 b,d,c,e,a
BIOXII16: ENVIRONMENTAL ISSUES

345155 Which of the following are effects of deforestation?

1 Loss of biodiversity
2 Disturbs hydrologic cycle
3 Soil erosion
4 All of the above.