Without genetic variation there would not be evolution. genetic variation sometimes is a result of a change in the environment. some variation occurs to help the animal better survive in their habitat. maybe there was a disruption in their ecosystem and their species will become vulnerable unless they change somehow
<u>Answer:</u>
Continuous pumping of water causes drawdown. The water table lowers rapidly.
<u>Explanation:</u>
- Water table is the level below which the ground is saturated with water.
- During rainfall the runoff water percolates into the ground through the gap in the soil particles and the water table is recharged.
- But when gallons of water are pumped continuously it leads to a drastic reduction in the water table because, water from the surrounding aquifers move towards the place where the vacuum is created by pumping.
- To prevent this, the groundwater should be recharged and over drawing should be avoided.
Answer:
10% and given. try that out.
Explanation:
Answer:
a medical world, a sign is a health issue that can be observed.
1. weight gian
2. hair loss
sorry this is all o now