Which of the following types of natural selection is most common during periods of environmental changes like global warming?
(A) Stabilizing
(B) Sexual
(C) Directional
(D) Diversifying

Which of the following factor decides the choice of shelter? A. Geography of area B Environmental condition C. Availability of raw material D. Economic status of person

Which of the following oxidation state is common for all lanthanides? (a)+2 (b) +3 (c) +4 (d) +5

Which of the following is the most common kidney stone-forming compound ? A. Calcium oxalate B. Magnesium oxide C. Sodium bicarbonate D. Magnesium citrate

Which of the following are objectives of Environmental education? A. Awareness of the environment and ite problema. B. A sense of urgency and responsibility towards environment. C. Social values and attitudes. D. Skill to solve environmental problem.

Which of the following are theme of Environmental studies? A. Friends and family B-Animal and plant C. Shelter D. Water and food E. Travel

Fossil fuels are at the verge of getting exhausted. It is because of their non-replenishment, increasing demand, increasing population and more energy dependent technologies. Therefore, one has to look up to the sources which can be regenerated and cause the minimum possible environmental damage. Which of the following are the major effects of global warming caused due to burning of fossil fuels? A. Changes in weather. B. Melting of all the glaciers into water C. Deforestation

The most common balancing anion for cations like Na^(+) and K^(+) in plant body is (A) Boron (B) Phosphoric acid (C) Chlorine (D) Sulfate