Many freshwater animals cannot live for long in sea water and vice versa mainly because of the
A. Change in N levels
B. Change in the levels of thermal tolerance
C. Variations in light intensity
D. Osmotic problems
E. Spectral quality of solar radiation
Answer: Option D
Solution(By Examveda Team)
In freshwater a fish is hypertonic to its environment, it means fish is saltier and water continuously moves into the fishes body via Osmosis. Hence Many freshwater animals cannot live for long in sea water and vice versa mainly because of Osmotic problems. So the correct answer is 'Osmotic problems'.This Question Belongs to General Knowledge >> Environmental Science
What is the cause of the Exxon Valdez?
A. Oil Tanker which sank in 1989 along the coast of Alaska and marine life seriously affected.
B. a plane which crashed and caused death of human life
C. a ship which wrecked on the coast of India
D. none of these.
A. A much higher temperature than -10o C
B. A much lower temperature than -10o C
C. A temperature of -10o C
D. A temperature of -30o C
Infrared and visible satellite images might provide:
A. A way of determining cloud thickness and altitude.
B. A way of distinguishing between wet and dry clouds.
C. A way of identifying clouds suitable for cloud seeding.
D. A way of distinguishing between "new" and "old" clouds.
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