D. all of the above is the correct answer
Things around us are usually made up of combinations of elements. These combinations are called molecules. Molecules make up combinations called compounds.
Water is an example. There are 2 oxygen atoms and 1 hydrogen atom (oxygen and hydrogen are elements). Together there molecules make up H2O (water) which is a compound.
I hope this makes sense! I'm happy to answer any other questions you might have :)
Answer:
-photosynthesis
-chemosynthesis
Explanation:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals.
hope it helps:)
D. an asteroid because an asteroid is the only thing that can form a meteor crater.
