<span>Erosion can be prevented by the careful selection of appropriate crops, keeping ground cover on the soil, and contour plowing. Irrigation increases crop yields by about 200%, so more land must be irrigated to increase production efficiency, but this uses great quantities of water.
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Hope this helps!!
~ Lena~
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Answer:
Less than
Explanation:
Speed of sound increases with density of the medium. Since wood is less dense than water, the speed of sound is lower in wood.
Answer:
A.C → Alternating current.
D.C → Direct current
Explanation:
A.C is an abbreviation for Alternating current.
Alternating current is a type of current that flows sinusoidally or current that changes direction with time.
D.C is an abbreviation for Direct current.
This type of current flows only in one direction, i.e it doesn't change direction with time.
A rectifier can be used to convert A.C to D.C, allowing it to flow in one direction.
Answer: b.)Basic.
Explanation: Human Blood has a pH range of 7.35 to 7.45. this is an average but it is found to be more on the basic side for most healthy adults :)
concentration is the ratio of solute in a solution to either solvent or total solution.