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Latest
Q:

Which award is given to the individuals or communities from rural areas that have shown a significant contribution and dedication in the protection of wildlife in the Country?

A) Arjuna Award B) Padma Bhushan Award
C) Rajiv Gandhi Wildlife Conservation Award D) Amrita Devi Bishnoi Wildlife Protection Award
 
Answer & Explanation Answer: D) Amrita Devi Bishnoi Wildlife Protection Award

Explanation: The individuals or communities from rural areas that have shown extraordinary courage, a significant contribution, and dedication in the protection of wildlife in the Country are awarded by the Amrita Devi Bishnoi Wildlife Protection Award. Along with this a cash award of rupees, one lakh is also given to that individual/community.

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Category: School MCQs
Sub Category: Class 12 Biology Mcqs

207
Q:

For what reason was the Chipko Movement launched?

A) Protection of humans B) Protection of forest
C) Protection of ponds and lakes D) Protection of animals
 
Answer & Explanation Answer: B) Protection of forest

Explanation: The Chipko Movement was a non-violent social and ecological movement by rural villagers launched for the protection of forests. It was done in 1974 in the Garhwal Himalayas.

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Category: School MCQs
Sub Category: Class 12 Biology Mcqs

121
Q:

What is the process of re-growing a forest that once existed but was cut-down in the past called?

A) Deforestation B) Jhum cultivation
C) Reforestation D) Greenhouse effect
 
Answer & Explanation Answer: C) Reforestation

Explanation: The process of restoring or re-growing a forest that once existed but was removed or cut-down in the past is known as the reforestation. It is also known as afforestation. It may occur naturally but the process can be sped up by planting more trees.

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Category: School MCQs
Sub Category: Class 12 Biology Mcqs

175
Q:

Which one of the following is known as the slash and burn agriculture?

A) Afforestation B) Crop cultivation
C) Room cultivation D) Jhum cultivation
 
Answer & Explanation Answer: D) Jhum cultivation

Explanation: The slash and burn agriculture includes growing crops by cutting down the trees and vegetation of the forest and burning the plant remains for agricultural use. It is also known as the jhum cultivation and is mostly practiced in the north-eastern states of India.

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Category: School MCQs
Sub Category: Class 12 Biology Mcqs

122
Q:

In which of the following process the farmers cut down the trees of the forest and burn the plant remains?

A) Room cultivation B) Jhum cultivation
C) Crop cultivation D) Afforestation
 
Answer & Explanation Answer: B) Jhum cultivation

Explanation: The process of growing crops by cutting down the trees and vegetation of the forest and burning the plant remains for agriculture is known as jhum cultivation. It is also known as the slash and burn agriculture and is mostly practiced in the north-eastern states of India.

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Category: School MCQs
Sub Category: Class 12 Biology Mcqs

145
Q:

By the end of the twentieth century what percent of the land of India was covered by forests?

A) 19.4 % B) 30.3 %
C) 50.5 % D) 56.8 %
 
Answer & Explanation Answer: A) 19.4 %

Explanation: Almost 30 percent of the land in India was covered by forests at the beginning of the twentieth century. This was reduced to 19.4 percent at the end of the century. The main reason for this depletion was increasing deforestation due to the increase in the human population.

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Category: School MCQs
Sub Category: Class 12 Biology Mcqs

188
Q:

What is the process of removal of forest cover of an area called?

A) Afforestation B) Afforestation
C) Pollution D) Greenhouse effect
 
Answer & Explanation Answer: B) Afforestation

Explanation: The process of removal of forest covers of an area that is the conversion of forested areas to non-forested ones is known as deforestation. Almost 40 percent of forests in the tropics compared 1 percent in the temperate region have been lost due to this.

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Category: School MCQs
Sub Category: Class 12 Biology Mcqs

131
Q:

Which protocol was signed to control the emission of ozone-depleting substances?

A) France Protocol B) Germany Protocol
C) India Protocol D) Montreal Protocol
 
Answer & Explanation Answer: D) Montreal Protocol

Explanation: To control the emission of ozone-depleting substances an international treaty, known as the Montreal Protocol, was signed. It was signed in 1987 by more than 175 countries in Montreal (Canada).

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Category: School MCQs
Sub Category: Class 12 Biology Mcqs

145
Q:

Which of the following is an effect of the high dose of UV-B?

A) Night-blindness B) Snow-blindness
C) Fatigue D) Nausea
 
Answer & Explanation Answer: B) Snow-blindness

Explanation: UV-B is the shorter wavelength of UV. It penetrates deeper into the skin causing aging of skin and cancers. A high dose of UB-B leads to snow-blindness, also known as arc eye or photokeratitis.

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Category: School MCQs
Sub Category: Class 12 Biology Mcqs

143
Q:

What does the continuous depletion of ozone lead to?

A) Proper rains B) Ozone formation
C) Ozone hole D) Good yield
 
Answer & Explanation Answer: C) Ozone hole

Explanation: Due to the continuous degradation of ozone, the depletion of ozone occurs. This thinning in the layer of ozone is known as the ozone hole.

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Category: School MCQs
Sub Category: Class 12 Biology Mcqs

117