A subsurface rock layer that is composed of clay and bedrock and is an impermeable barrier to water flow would be described as a(n) <u>aquifer(option b)</u>.
An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt).
The study of water flow in aquifers and the characterization of aquifers is called hydrogeology. Aquifers occur from near-surface to deeper than 9,000 metres (30,000 ft).
There are three different types of aquifers: confined, unconfined, and perched. Recharge zones are typically at higher altitudes but can occur wherever water enters an aquifer, such as from rain, snowmelt, river and reservoir leakage, or from irrigation.
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I think it’s B. hope this helps, sorry if it doesn’t.
Ecosystem instability refers to that state when an ecosystem is unable to adjust with environmental changes. ... Ecosystem instability is also induced due to manmade activities. For example, (1) Destruction of Himalayan ecosystem due to deforestation, overgrazing etc.
Explanation:
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