Rain causing streams to flood would be an example of an example of an interaction between the two spheres, nnamely
a. hydrosphere and atmosphere.
b. atmosphere and cryosphere.
c. biosphere and hydrosphere.
d. hydrosphere and grosphere

(my guess is

You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars