Environmental Science In Agricultural - Study Mode
[#186] All the cases of forests land should be approved by
Correct Answer
(C) State Land Use Board
Explanation
Solution: All the cases of forest land should be approved by State Land Use Board. No State Government can allow use of forest land for non-forestry purposes without the prior approval of the Central Government.
[#187] In case of CO 2 of earth's atmosphere disappears, the temperature of earth's surface would
Correct Answer
(B) Decrease
Explanation
Solution: In case of CO 2 in earth's atmosphere disappears, the temperature of earth's surface would Decrease. Carbon dioxide traps heat in the atmosphere, a lessening of atmospheric carbon dioxide concentrations would mean that more heat could escape into space. This would result in a net decrease in the Earth's average temperature, assuming other factors remain the same.
[#188] Terrestrial life would become impossible with
Correct Answer
(B) Change in atmosphere permitting all solar radiations to reach lithosphere
Explanation
Solution: Terrestrial life would become impossible with Change in atmosphere permitting all solar radiations to reach lithosphere. Earth's climate system is a complex system having five interacting components: the atmosphere, the hydrosphere, the cryosphere, the lithosphere and the biosphere. The Earth absorbs most of the energy reaching its surface, a small fraction is reflected. In total approximately 70% of incoming radiation is absorbed by the atmosphere and the Earth's surface while around 30% is reflected back to space and does not heat the surface.
[#189] Chlorofuorocarbons release which of the following chemicals which is harmful to ozone layer
Correct Answer
(B) Chlorine
Explanation
Solution: Chlorofuorocarbons release chlorine from the following chemicals which is harmful to ozone layer. Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), and fluorine (F), produced as volatile derivatives of methane, ethane and propane. CFCs contribute to ozone depletion in the upper atmosphere, the manufacture of such compounds has been phased out under the Montreal Protocol, and they are being replaced with other products such as hydrofluorocarbons.
[#190] Who coined the term biosphere?
Correct Answer
(D) Eduard Suess
Explanation
Solution: The term biosphere is coined by Eduard Suess. The term "biosphere" was coined by geologist Eduard Suess in 1875, which he defined as the place on Earth's surface where life dwells. The biosphere is virtually a closed system with regard to matter, with minimal inputs and outputs. It can also be termed the zone of life on Earth.