Both vertical and horizontal Marcellus Shale wells produce marketable quantities of natural gas. The drilling process focuses first on reaching – and protecting – water-bearing zones beneath the ground. This allows for the extraction of larger quantities of natural gas from a single wellhead.
The answers are B, C, & F.
A resource is a natural or manmade component that is harnessed by humans for a particular benefit, either subsistent or for enterprise. Examples of resources can be money, nonrenewable resources like crude oil and minerals, and biotic factors such as biodiversity. Energy is the most commonly used resources as it powers the global economies. People are also distributed across the globe according to the availability of resources. The more the resources, the higher the density of people in a region.
Answer : As glaciers melt valleys and rivulets will occur.
Answer: fossils that were already in sand or in the ground the fossils have been there for a certain amount of geological time
Explanation:
