15. rewrite the following statement as a conditional statement:

apples grow on trees.

if it grows on a tree, it is an apple.
if a fruit is an apple, then it grows on a tree.
apples are a fruit if and only if they grow on a tree.
if it is not a fruit, then it is not an apple.

The conditional statement refers to the statement which speculates about things which might have happened or could happen. The word 'if' in a sentence makes it conditional. When used in the past tense it depicts the "Unreal past."

Hence, when the sentence "Apples grow on trees." when written in a conditional statement it will be written as:

If a fruit is an apple, then it grows on a tree.

the answer is clear boy