Answer:
the main purpose of building a dam is A to create reservoirs to store water
Explanation:
Density is the amount of mass in a certain Volume. Air pressure results from a column of air pushing on an area. A measure of how tightly air molecules are packed together is called Density
Option 1B, 2A and 3B
Explanation:
Density is the mass amount of a substance held up to its volume in certainity to a ratio formula. So basically, density = mass per volume of a substance.
Air pressure, on the other hand, is the pressure which is being experienced by the columnar weight of air, when the air in an area is being pushing down.
The amount of mass of the air in the prescribed volume of air constitutes its density and hence the air molecules packed tightly in the volume presumed carries a mass and is noted as the density.
Answer:
Plasma carries water, salts and enzymes.
Explanation:
The main role of plasma is to take nutrients, hormones, and proteins to the parts of the body that need it. Cells also put their waste products into the plasma. The plasma then helps remove this waste from the body.
Answer:
2732
Explanation:
That is,
418+32+927+28+26+454+33+814=2732
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