They lived in small communities and survived by hunting and gathering. ... Aboriginal and Torres Strait Island communities only used the land for things that they needed - shelter, water, food, weapons. They never overused it or damaged it.
Until the early Proterozic there were only negligible amounts of free oxygen in the atmosphere
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cultural region of the United States that generally includes Arizona, New Mexico, and adjacent portions of California
Explanation:
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<u>Fossil fuel- </u>The sources of fossil fuels are directly from the plants and animals, that are buried millions of years back and are converted into fossil now.
The consumption of fossil fuel leads to the emission of carbon into the atmosphere that is responsible for the increasing global temperature. This is one of the major problem of fossil fuel use.
<u>Nuclear fuel-</u> Nuclear fuels are derived from the radioactive elements such as uranium, strontium and potassium.
One of the major problem of using nuclear fuel is that it releases radioactive waste, that are harmful for various life forms.
<u>Renewable fuels-</u> This are renewable energy that can be generated again and again and are directly derived from the wind, water and the sun. For example, wind mill, solar panels and dams.
One problem of renewable fuels is that it has a lower production of energy such as electricity in comparison to the fossil fuels.
The three different types of Western European agriculture are:
- Mediterranean polyculture; it is practiced alongside the Mediterranean, in here we have farming of wheat that grows in the mild winters and is cropped in spring, as well as plantages with deep rooted trees that are resilient to droughts like the vine trees and olives.
- Dairy farming; this type is typical for the places that are colder and cloudy like the Alps, the Baltic, the British Isles and Brettony. This is places are focused on dairy farming because the conditions don't allow anything else to be farmed, but it is excellent for dairy farming.
- Mixed livestock and crop farming; this agricultural belt is found between the Mediterranean polyculture region and the dairy farming region. In here there's not really focus on specific thing to farm but instead there's multiple plants and animals being farmed.
