When a dominant trait joins with the recessive trait, only the dominant trait will show when determining the organism's characteristics.
Explanation:
The dominant trait is "dominant" so it will mask the recessive trait. For example, brown eyes is a dominant trait for the color of someone's eye. Blue eyes is a recessive trait. If someone were to have both genes when they were born, they would have brown eyes because it masks the genes for blue eyes.
I can’t see the options in the question. But, fossil fuel includes hydrocarbon-containing natural resources that are NOT derived from animal or plant sources. These are sometimes known instead as mineral fuels.