On a timer!
a geologist finds a metamorphic rock and notices that it has grains that formed in parallel layers. the geologist pries at the rock, and it splits apart along the bands formed by the layers.

which type of rock did the geologist most likely find?

gneiss
limestone
marble
sandstone

Option A, gneiss

Explanation:

Metamorphic rocks are classified based on their grain arrangement in to  foliated rocks and non- foliated rocks. These foliated rocks are the ones in which the grains are arranged in parallel layers bands which allows them to   split apart along these band. Some common examples of foliated metamorphic rocks are slate, schist, and gneiss

Thus , option A gneiss is the correct answer.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."