Environmental Science MCQs

✅ The correct answer is option D.
In an average year, more people die from flash floods and flooding than from any other natural disaster.

✅ The correct answer is option A.
In recycling of mineral elements within an ecosystem, the responsible direct acing organism are called decomposers.

✅ The correct answer is option C.
The nation whose government is promoting large families because of an aging population and low fertility rate is France.

✅ The correct answer is option D.
Phytoplankton->Rooted aquatic plants->Free floating stage->Reed swamp stage->Sedge Meadow stage-> Wood land stage-> Climax forest.

✅ The correct answer is option C.
The concentration of the oxygen would fall and this causes the death of the aquatic animals due to the suffocation. Hence, the correct answer is ‘non-availability of oxygen’.

✅ The correct answer is option A.
In India, the practice of clearing and burning the forest area for cultivation is known as jhum or jhoom. Slash-and-burn can be part of shifting cultivation, an agricultural system in which farmers routinely move from one cultivable area to another.

✅ The correct answer is option B.
Endemism refers to the phenomenon in that the organisms are exclusively restricted to a given area.

✅ The correct answer is option D.
India in the third week of December 2016 was ranked 4th in the Global Wind Power Installed Capacity Index. The cumulative installed wind power generation capacity of India is 25088 MW. The cumulative installed wind power generation capacity of China is 145362 MW.

✅ The correct answer is option D.
The inversion created from a cold front is especially evident when a shallow layer of polar air moves into lower latitudes. The air associated with the shallow air mass is colder than the air aloft, thus creating an inversion. Inversions promote stability within the vertical layer of the troposphere they exist.

✅ The correct answer is option B.
World Environment Day is held each year on June 5. It is one of the principal vehicles through which the United Nations (UN) stimulates worldwide awareness of the environment and enhances political attention and action.