The u. s has sent unmanned spacecrafts to the planets in our solar system a. all b. none of c. some d. most (its not c nor d)

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.