Answer: Farming
Explanation: Plowing the land is the first source of wealth.
Due to the reduction in large industrial emmissions such as fertilizers into water zones.
Answer:
Cellular Respiration
Explanation:
In cellular respiration, animals take in O2 (oxygen) and exhale CO2 (carbon dioxide).
Answer:
Warm front
Explanation:
A warm front is the transition zone of the replacement of a cold air mass by a warm air mass. The pressure centers of warm fronts are usually low and the pressure read by a barometer will decrease due to an incoming warm front
The general direction of motion of warm fronts is from southwest to northeast with warmer and moist air behind the warm front than air into which the front flows. Therefore, warm fronts normally results in moderate precipitation or rainfall or snow.