Which of the following is true about a light-year? A)It is a measure of time.

B) It takes one light-year for light from the Sun to reach Earth.

C) it takes one light-year for Earth to orbit the Sun.

D) It is a measure of distance.

plz answer ^w^
thx

What would most likely happen if green plants were exposed to longer days of sunlight? a. the mitochondria would produce less energy . b. the chloroplasts would produce more energy. c. the cell wall would become thicker. d. the vacuoles would quickly shrink.b. the chloroplasts would produce more energy.