Which is an abiotic factor that can be found in a rain forest ecosystem? A. Air
B. Algae
C. Flowers
D. Animals

A. Air

Explanation:

Abiotic factors are things that are not living.

Air can be found in a rain forest ecosystem, as it can be found in all ecosystems, but it is not living.

On the other hand, algae, flowers, and animals are biotic instead of abiotic because they are living things.

So, A is the correct answer.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.