Environmental Science - Study Mode
[#461] Red data book contains data of
Correct Answer
(D) threatened species
Explanation
Solution: Red Data Book is a state document established for documenting rare and endangered species of animals, plants, and fungi, as well as some local subspecies that exist within the territory. The Red Data Book contains the complete list of threatened species.
[#462] A group of individuals of a plant or animal species, inhabiting a given area is called
Correct Answer
(B) Population
Explanation
Solution: Group of individuals of a plant or animal species inhabiting a given area or group of individuals of a species.
[#463] ________ is the degradation of land in arid, semi-arid and dry sub-humid areas.
Correct Answer
(B) Desertification
Explanation
Solution: It states that desertification means “land degradation in arid, semi-arid and dry sub-humid areas resulting from various factors, including climatic variations and human activities”.
[#464] Lotic ecosystem refers to
Correct Answer
(B) Ecosystem of flowing water
Explanation
Solution: Lotic ecosystems can be contrasted with lentic ecosystems, which involve relatively still terrestrial waters such as lakes, ponds, and wetlands. Together, these two ecosystems form the more general study area of freshwater or aquatic ecology.
[#465] When the two ecosystems overlap each other, the area is called
Correct Answer
(C) Ecotone
Explanation
Solution: An ecotone is a transition area between two biomes. It is where two ecosystems overlap each other. It may be narrow or wide, and it may be local (the zone between a field and forest) or regional (the transition between forest and grassland ecosystems).