Which sentence is a main idea of "why leaves turn color in the fall? "
a. leaves stop making chlorophyll as summer ends
b. photosynthesis begins in fall
c. longer days and shorter nights cause leaves to turn color

Ou work as a cashier for a grocery store and earn $5 per hour. you also mow lawns and earn $10 per hour. you want to earn at least $50 per week, but would like to work no more than 10 hours per week. which system of inequalities, along with y ? 0 and x ? 0, would you use to solve the real-world problem?

What would be the mass of an atom with 8 protons and 8 neutrons? a) 16 amu b) 8 amu c) 64 amu

Which statement about winslow homer's paintings is true? they look abstract and imaginary. they tell about things people do in the city. they tell about everyday life in the country.