Environmental Science MCQs

✅ The correct answer is option D.
When the community moved from a pioneer community to the climax community, the biomass will increase. This will increase the biomass because the number of organisms belonging to different species will also increase.

✅ The correct answer is option A.
Rain water is diffused into the ground by gravitational force.

✅ The correct answer is option A.
The Collective Set of Alleles in a Population Is Its Gene Pool. The fact that genes exist in alternate forms, called alleles, forms the basis for the study of population genetics. Populations are made up of members of the same species that interbreed.

✅ The correct answer is option A.
The ozone at ground level is primarily from fossil fuel precursors.

✅ The correct answer is option C.
Environmental education should be in interdisciplinary approach.

✅ The correct answer is option A.
In grassland ecosystem, the shape of pyramid of biomass is upright. In grassland ecosystem, the biomass at the base is maximum followed by that in primary consumers (herbivores), followed by that in secondary consumers (carnivores). The base of the pyramid of biomass represents the producers in a pond ecosystem.

✅ The correct answer is option B.
Oceans are polluted by oil on a daily basis from oil spills, routine shipping, run-offs and dumping. Oil spills are a source of pollution for land and water.

✅ The correct answer is option B.
A biocenosis (UK English, biocoenosis, also biocenose, biocoenose, biotic community, biological community, ecological community, life assemblage,) coined by Karl Möbius in 1877, describes the interacting organisms living together in a habitat (biotope).

✅ The correct answer is option B.
Respiratory or knee roots (pneumatophores) are characteristic of many species; they project above the mud and have small openings (lenticels) through which air enters, passing through the soft spongy tissue to the roots beneath the mud.

✅ The correct answer is option C.
A small quantity of radioactive material can produce an enormous amount of energy.