Please help this is a 7th grade science problem multiple choice

What percentage of light hits earth's surface directly?

Long term exposure to waves can cause sunburns and skin cancer.

Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.