Answer:
B
Explanation:
The moon moves in the earth's shadow and is blocked by the earth .
Answer: polyunsaturated fatty acid residues
Explanation: Unsaturated fatty acids have a lower melting point so arctic animals have these fatty acids in their membranes.
Answer:
The air pollution in china decreases due to less usage of transportation and shutdown of industries.
Explanation:
From December to march, transportation and industrial work is greatly affected due to the corona virus. Due to reduction of activities in both transportation and industries, there is a lot of decrease occurs in the air pollution. We know that smoke produce by vehicles and industries are the main cause of pollution so that's why air pollution decreases between December to march..