Question

select the correct answer. the water cycle is a biogeochemical cycle that is a closed system. which of these sentences describes a viable stage that occurs in the water cycle? a. water enters and exits the system boundaries of the cycle. b. water can change from solid to liquid at certain points in the cycle. c. ice forms anew, adding matter to the cycle. d. water vapor condenses, subtracting energy from the cycle.

Explanation:

The water - cycle is a closed system, so water does not enter or exit the system boundaries (eliminating A). Matter is conserved in a closed system, so ice forming does not add new matter (eliminating C). When water vapor condenses, it releases energy rather than subtracting energy (eliminating D). Water changing from solid (ice) to liquid (water) is a common stage in the water - cycle, such as during melting in spring.

Answer:

B. Water can change from solid to liquid at certain points in the cycle.