In the carbon cycle, carbon molecules are exchanged between the natural carbon reservoirs of rocks, soil, plants, fossil fuels, and the ocean. Which of the following is NOT an important exchange between two reservoirs?
А
from the atmosphere to the hydrosphere, in which gaseous carbon dioxide dissolves into the oceans
B
from the atmosphere to fossil fuels, in which gaseous carbon dioxide forms minerals at Earth's surface
с
from the hydrosphere to fossil fuels, in which ocean sediments are compressed into rock on the ocean floor
from fossil fuels to the atmosphere, in which emissions from cars and industry release gaseous carbon dioxide

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.