3. what system does alcohol affect immediately?
a. digestive system
b. circulatory system
c. nervous system
d. endocrine

Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation

Whats one way that rocks do not follow the typical rock cycle pathway?

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)