Environmental Science
The pyramid of number of a parasitic food chain in forest ecosystem is

sometimes inverted and sometimes upright
mixture of inverted and upright
always upright
always inverted

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Environmental Science
The Gulf Coast states are more humid in summer than the coastal areas of Southern California mainly because of the:

Higher water temperature in the Gulf of Mexico
Lower air temperature in Southern California
Higher air temperature in the Gulf States
Low relative humidity of the air over the Pacific Ocean

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