a. baking soda. b. soap. c. black coffee. d. oven cleaner. e. bleach.
a. respiration. b. photogenesis. c. photosynthesis. d. chemisynthesis. e. osmosis.
a. hydrogen. b. oxygen. c. carbon dioxide. d. nitrogen. e. carbon monoxide. f. helium.
a. 500 pounds (60 gallons) 960 glasses. b. 4,000 pounds (500 gallons) 8000 glasses. c. 2,000 pounds (250 gallons) 4000 glasses.
a. has hooves. b. regurgitates food and rechews it. c. produces milk. d. has horns.
a. processed to keep milk fat from separating. b. vitamin D is added. c. heated to kill germs. d. inspected and found safe.
a. Mars. b. Jupiter. c. Mercury. d. Pluto. e. Earth.
a. Both the second and third person are liars. b. Both the second and third are truth-sayers. c. The second is telling the truth, the third is lying. d. The second is lying, the third is telling the truth.
a. 25 mph. b. 2 mph. c. 10 mph.
a. sometimes. b. cannot. c. always.