Ascientists wanted to figure out if the amount of plant food affects the number of beans produced in bean plants. which would be the control group? a. the plant given no water and no plant food b. the plant given no water and 2 grams of food c. the plant given water and 1 gram of food d. the plant given water and no plant food

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

What are some manufactured items that can be recycled? plastic bottles diapers paper cups styrofoam