In which time frames can short-term environmental changes occur? Check all that apply.
in days
in minutes
over hundreds of years
over thousands of years
over billions of years

What do scientists need to look at before developing an argument

Liquid water turns into water vapor at which step in the water cycle? a. precipitation o b. water run off c. evaporation d. condensation

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.