Environmental Science MCQs

✅ The correct answer is option A.
Eco is an abbreviation for ecology, the system of relationships between living things, and with their environment. Friendly implies beneficial, or at least not harmful. It should follow that the term eco-friendly, when added to services or products, indicates positive, or at least not harmful, effects on living things.

✅ The correct answer is option D.
The process of successful establishment of the species in a new area is called ecesis.

✅ The correct answer is option A.
Allopatric is the species that occur in different geographical regions separated by special barriers.

✅ The correct answer is option C.
While its use is widespread in the English language, Tsunami is actually a Japanese word. The word originates from a conjunction of two words, ‘Tsu’ and ‘Nami’. Tsu translates to ‘Harbor’ while Nami translates to ‘Wave’.

✅ The correct answer is option B.
Kinetic energy is the energy of motion. All moving objects have kinetic energy. When an object is in motion, it changes its position by moving in a direction: up, down, forward, or backward.

✅ The correct answer is option B.
Average total rainfall is 100 – 150 cm in chaparrals, located in Australia, South America and Africa.

✅ The correct answer is option B.

✅ The correct answer is option B.
Methane-20%, N2O-18% is the correct percentage of the two green house gases that contribute to the total global warming.

✅ The correct answer is option B.
Phytoplankton are producers of lakes.

✅ The correct answer is option A.
Pyramid of energy, showing the rate of energy flow and/or productivity at successive trophic levels. The pyramids of numbers and biomass may be upright or inverted depending upon the nature of the food chain in the particular ecosystem, whereas pyramids of energy are always upright.