4. Which choice best explains why a 1 kilogram sample of carbon and a 3 kilogram sample of carbon have similar properties?
A. They have the same mass
B. They have the same shape
C. They have the same volume
D. They have the same type of atoms

answer; i believe the correct answer to the above question is ( friction)

the transfer for conduction is the heat transfering from the liquid to the spoon

the transfer for convection is the heat rising from the liquid to the air

the transfer for radiation is the heat going through the sides of the cup and to the air

at least that is what i would do

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

the answer would be knowledge about cars!