This is because the gravitational force on a object is directed to its mass. Since the moon has a lesser mass that the Earth, its gravitational pull is weaker. As a result objects weigh less on the moon.
The correct answer is D. All of the above.
Soil compaction is termed as the compression of particles of small to small volume which are then reduces their pore space size which is being available for water and air.
Soil compaction can result from;
1. Elimination or reduction of pore space in soil.
2. Heavy weight machine on soil.
3. Livestock walking over the soil.
Soil compaction can result to decrease in crop production and increase in erosion of soil.
T he purpose of the soil compaction is that large water pressure which is build up and causes soil liquefy in the time of earthquake.
Natural selection is when nature select desire traits that helps the species survive longer and reproduce
Answer: Our kidneys filter out excess ions from our blood so that they can be excreted through urine. If the concentration of ions is too high, the kidneys make sure to filter as much of them as they can out of the body. If there are not enough ions, the kidneys will filter them back into the system.
Hope it helps