They represent areas of equal pressure<em /><em /> because they are isobars.
Hope that helped you!
HYDRAULIC fracturing, or fracking, is a drilling method used to extract petroleum (oil) or natural gas from deep in the earth. In the fracking process, cracks in and below the earth surface are opened and widened by injecting water, chemicals, and sand at high pressure. Hope this helps you.
It should be a. Once fossil fuels are used we can not use them anymore.
The African continent isn't suffering from the environmental challenge "reforestation", since most of the continent hasn't suffered deforestation.
Akimiski Island <span> Arctic Ocean</span>
