How would the speed of earth's orbit around the sun change if earth's mass increased by 4 times? a. it would increase by a factor of 2c. it would decrease by a factor of 2b. it would increase by a factor of 4d. the speed would not change

Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration