Answer:
A to meet needs through collective effort
Explanation:
Picture as proof
A solar eclipse is when the moon moves between the earth and the sun, so the moon casts a shadow on the earth
Answer:
the study of heredity and the variation of inherited characteristics.
The mass on mars is 38 percent of earth. Ex: dog weighs 100 on earth, and 38 on mars. 38 percent of 150 is 57 :P