A student sets up the investigation shown in the image.
The movement of colored water through the gravel best models-
Select one:
A)pollution of groundwater
B)conservation of water
C)condensation of water vapor
D)surface runoff of precipitation

What element is able to combine with itself and hydrogen to form large molecules ?

You want to cultivate some exotic plants at your farm. however, the climate is chillier than the temperature range favorable to the crop. which is the best method to use for the cultivation of this exotic crop? a. use a crop rotation method b. use a lot of fertilizer c. prepare the seed bed properly d. use a greenhouse e. use irrigation

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping