How far is earth from the sun

a. 1 light year

b. 1 kiloparsec

c. 1 au

d. 1 parsec

Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.

What body of water is the second cataract of the nile river submerged under

Can someone answer all these questions i need it done by tonight. once again