Why is the big bang called a theory? a) all of these are correct
b) because all people on earth believe in it
c) because we have evidence of it but can't prove it
d) because it is true​

Ais not a compound machine. a. bolt b. shovel c. handcart (dolly) d. see-saw (teeter totter)

Ineed the answers for these promblems i have

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.