a gas that contributes to the greenhouse effect by absorbing infrared radiation, e.g., carbon dioxide and chlorofluorocarbons.
Answer:
A jet stream that alternates between hot and cool periods.
Explanation:
Winds typically travel at the very same latitudes, but Rossby waves occur when winds shift it into hurricane pattern. The Rossby waves go in a north-south direction and then return again. Whenever the Rossby waves' breezes swing up, they transport warm air first from tropical to the northern, while when they swing down, they transport cold air from either the Arctic to the south, resulting in alternating warm and cold spells.
<h2>Answer:</h2>
By digging tube wells
<h2>Explanation:</h2>
Water can be obtained from the land by digging a hole in the earth surface. The process is called boring. A tube well is a type of water well in which a long, 100–200 millimeters-wide, stainless steel tube or pipe is bored into an underground aquifer. In this way people who supply their own water to other areas or people generally obtain it by using tube wells where they attach a motor to it for speedy suction and then transfer the water to destination by using pipes.
Answer:
Correct answer is (a). Assimilation of immigrants into the existing population.
Explanation:
The frequency distribution will not change from generation to generation once a population is in Hardy-Weinberg equilibrium. However, on assimilation of immigrants into the existing population, the equilibrium will definitely change.
