Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
21. Which of the following statements are correct with respect to population?
1. Birth and emigration lead to increase in population.
2. Death and immigration lead to decrease in population.
Select the correct option from the codes given below:
1. Birth and emigration lead to increase in population.
2. Death and immigration lead to decrease in population.
Select the correct option from the codes given below:
22. Which of the following statements are correct about an upright pyramid of numbers?
1. The number of individuals decrease from lower level to higher trophic level.
2. Grassland ecosystem is an example of an upright pyramid of numbers.
Select the correct option from the codes given below:
1. The number of individuals decrease from lower level to higher trophic level.
2. Grassland ecosystem is an example of an upright pyramid of numbers.
Select the correct option from the codes given below:
23. Which of the following type of ecological pyramid helps to explain the phenomenon of biological magnification?
24. Which of the following statements are correct with respect to mangroves?
1. In mangroves leaves are thick and contain salt secreting glands.
2. The trees of mangroves exhibit viviparity mode of reproduction. i.e. seeds germinate in the tree itself.
3. Adventitious roots which emerge from the main trunk of a tree above ground level are known as stilt roots.
Select the correct option from the codes given below:
1. In mangroves leaves are thick and contain salt secreting glands.
2. The trees of mangroves exhibit viviparity mode of reproduction. i.e. seeds germinate in the tree itself.
3. Adventitious roots which emerge from the main trunk of a tree above ground level are known as stilt roots.
Select the correct option from the codes given below:
25. Land Ocean Interactions in the Coastal Zone (LOICZ) was launched in which of the following year?
26. Which of the following statements are correct regarding Eutrophication?
1. Eutrophication is a syndrome of ecosystem which occurs as a response to the addition of artificial or natural nutrients such as nitrates and phosphates through fertilizer, sewage, etc that fertilize the aquatic ecosystem.
2. It is caused due to the leaching of phosphate and – or nitrate containing fertilisers from agricultural lands into lakes or rivers.
Select the correct option from the codes given below:
1. Eutrophication is a syndrome of ecosystem which occurs as a response to the addition of artificial or natural nutrients such as nitrates and phosphates through fertilizer, sewage, etc that fertilize the aquatic ecosystem.
2. It is caused due to the leaching of phosphate and – or nitrate containing fertilisers from agricultural lands into lakes or rivers.
Select the correct option from the codes given below:
27. Which of the the following dolphins are smallest and rarest in the world?
28. International Treaty on Plant Genetic Resources for Food and Agriculture is Headquartered at which of the following places?
29. Which of the following statements are correct regarding White-bellied Heron?
1. It is Critically Endangered.
2. It is found in Bhutan and north-east India to the hills of Bangladesh and north Myanmar.
3. Its natural habitat is rivers with sand or gravel bars or inland lakes.
Select the correct option from the codes given below:
1. It is Critically Endangered.
2. It is found in Bhutan and north-east India to the hills of Bangladesh and north Myanmar.
3. Its natural habitat is rivers with sand or gravel bars or inland lakes.
Select the correct option from the codes given below:
30. Panna Biosphere Reserve is located in which of the following states?
