An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt). Groundwater can be extracted using a water well.
Drinking through a straw shows fluid flowing from high pressure to low pressure in 2 ways. The first is how it shows high pressure as you stuck on the straw. This increases the pressure and brings the fluid to your mouth. If this pressure is kept you can successfully pick up the straw filled with water and have none come out. This demonstrates low pressure when you stop ducking and the fluid falls back down the straw into your cup.
Answer:
Polygenic trait
Explanation:
A polygenic trait is a type of trait whose phenotype observed is affected by more than one genes i.e expression of the trait is controlled by not only a single gene but many. These traits include height or skin color and they display that display a continuous distribution; the hair color is controlled by 7 genes as described which is more than more.
