<span>The MOSQUITO spreads more parasitic diseases to humans than any other vector.
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Meristems are cell divisions. Trees grow by the cell divisions
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Answer:
a, a permanent thermocline traps nutrients in the deep water
b. primary productivity is high all year round, because there is a constant supply of solar energy for photosynthesis.
Explanation:
Thermocline occurs in the tropical regions because the temperature is very high which warms the upper layer of water bodies whereas the lower layer of water has low temperature due to no sunlight. The primary productivity is high all year in the tropical regions, because there is a constant supply of sunlight that is needed by the plants for preparing their own food.
Agricultural chemicals is an example of a nonpit source of freshwater pollution