Question

which of the following is an example of a testable scientific hypothesis?
○a. roses grow faster in the sun than in the shade.
○b. why do plants grow better in the sun than in the shade?
○c. peacocks have prettier tail feathers than pigeons do.
○d. gorillas are happier in the wild than they are in the zoo.

Explanation:

A testable scientific hypothesis is one that can be proven or disproven through experimentation. Option A can be tested by growing roses in sun - lit and shaded areas and measuring their growth rates. Option B is a question, not a hypothesis. Option C's "prettier" is subjective and not objectively testable. Option D's "happier" is subjective and hard to measure objectively.

Answer:

A. Roses grow faster in the Sun than in the shade.