Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
21. Sometimes the number of species and the population density of some of the species is much greater in the ecotone than either community. What is this phenomenon known as?
22. Which of the following statements are correct about the type of communities?
1. Major Communities are large-sized, well organized, relatively independent and depend on the sun’s energy.
2. Minor Communities are dependent on neighbouring communities and are often called societies.
Select the correct option from the codes given below:
1. Major Communities are large-sized, well organized, relatively independent and depend on the sun’s energy.
2. Minor Communities are dependent on neighbouring communities and are often called societies.
Select the correct option from the codes given below:
23. Which of the following statements are correct with respect to food chain?
1. A food chain starts with producers and ends with top carnivores.
2. The sequence of eaten and being eaten involves transfer of food energy from trophic level to another.
3. An ecosystem may consist of several interrelated food chains.
Select the correct option from the codes given below:
1. A food chain starts with producers and ends with top carnivores.
2. The sequence of eaten and being eaten involves transfer of food energy from trophic level to another.
3. An ecosystem may consist of several interrelated food chains.
Select the correct option from the codes given below:
24. In which of the following type of ecological pyramids the individuals in each trophic level are weighed?
25. Which of the following statements are correct?
1. The pyramid of biomass may assume an inverted form in many aquatic ecosystems.
2. Producers in the aquatic ecosystems are tiny phytoplanktons that grow and reproduce rapidly.
3. The pyramid of biomass (inverted) has a small base, with the consumer biomass at any instant actually exceeding the producer biomass.
Select the correct option from the codes given below:
1. The pyramid of biomass may assume an inverted form in many aquatic ecosystems.
2. Producers in the aquatic ecosystems are tiny phytoplanktons that grow and reproduce rapidly.
3. The pyramid of biomass (inverted) has a small base, with the consumer biomass at any instant actually exceeding the producer biomass.
Select the correct option from the codes given below:
26. In which of the following type of biotic interaction one species benefits and the other is harmed?
27. Which of the following statements are correct?
1. Sedimentary cycles are considered to be perfect nutrient cycles.
2. Gaseous cycle is an imperfect nutrient cycle.
Select the correct option from the codes given below:
1. Sedimentary cycles are considered to be perfect nutrient cycles.
2. Gaseous cycle is an imperfect nutrient cycle.
Select the correct option from the codes given below:
28. Integrated Coastal and Marine Area Management (ICMAM) was launched in which of the following year?
29. Which of the following is the chairman of National Ganga River Basin Authority?
30. Consider the following statements about Wild Yam:
- Its scientific name is “Dioscorea villosa”.
- It is a species of twining tuberous vine.
- It is native to eastern North America.
Which of the above statements is/are correct?
