I’m pretty sure the answer is C
I would put "identical to."
<span>15. Groundwater is one of our most important natural resources. It provides us with much of the water that we use for drinking water, household uses, crop irrigation, and many other things. In fact, over 1/3 of Earth's population relies on groundwater for its needs, including 99% of the rural population in the U.S.
16. I dont know this one
17. </span>One type of cavern, known as solution caverns, are formed when large portions of limestone beneath the ground disintegrate and dissolve through the action of underground water. <span>Solutional caves are the most frequently occurring caves and such caves form in rock that is soluble, such as </span>limestone, but can also form in other rocks, including chalk,dolomite<span>, marble, salt, and </span>gypsum<span>.</span>
Answer:
Plants take in carbon-dioxide from the atmosphere during photosynthesis. The amount of carbon-dioxide absorbed by plants is roughly equal to that released by plants, animals, and decomposing/burning fossils.
Explanation:
<span>The physical characteristics of minerals include traits which are used to identify and describe mineral species. These traits include color, streak, luster, density, hardness, cleavage, fracture, tenacity, and crystal habit.</span>
