The main reason for using solar sails to propel spacecraft is to increase the
spacecraft's
select one:
a. speed
b. fuel consumption
c. mass
d. size

human didn't come from monkeys man i hate these stupid teachers

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

on the planet jupiter, the acceleration due to gravity is approximately 26 m s2 , roughly 2.7 times the acceleration due