they come from greek roots
example, gravitropsim
gravi is gravity
tropos means 'turning'
so means turning to gravtity
phototroposism
photos=light
tropos='turning'
so it means turning toward the light
photosynthysis
photos=light
synthysis=tuning into or transforming into a useable form
so it means turning light into a usable form
Answer:
Ask what you can do for your country."
Explanation:
President Kennedy, told the nation," Ask not what your country can do for you. (There is an unnecessary comma after "Kennedy.")
'Elervate' should be 'elevate'.
'Bloodstream' should be plural.
Solar technologies generate a majority of the power used during space missions, keeping life support and other vital spacecraft systems working. Solar power is so critical that NASA spends considerable time and money to make solar panels must more efficient, lightweight and affordable.
