Weathering & Erosion. Igneous, sedimentary, and metamorphic rocks on the surface of the earth are constantly being broken down by wind and water. ... The result of all this: large rocks are worn down to small particles.
Answer:
True
Explanation:
Groundwater is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is called the water table. Groundwater is recharged from the surface; it may discharge from the surface naturally at springs and seeps, and can form oases or wetlands. Groundwater is also often withdrawn for agricultural, municipal, and industrial use by constructing and operating extraction wells. The study of the distribution and movement of groundwater is hydrogeology, also called groundwater hydrology.
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Answer:
Two ways that the water pollution from a factory in the small stream could travel through a watershed are:
The polluted water will drain into the ground water and can travel further then, OR the polluted water can travel via watershed by leaking into the other streams, rivers, and oceans around it.
Explanation:
Ans.
In a cell, nucleus can be seen by a simple compound microscope, while DNA molecules cannot be seen under a compound microscope. This is because, DNA molecules are too small and these molecules are dispersed in nucleus in less compact state.
During DNA extraction, DNA is removed and purified from the cells by cell lysis. The extracted DNA is precipitated by ethanol that makes DNA molecules to clump together, makes it more condensed and DNA molecules become visible.
