The Sahel (/səˈhɛl/) is the ecoclimatic and biogeographic zone of transition in Africa between the Sahara to the north and the Sudanian Savanna (historically known as the Sudan region) to the south. <span>In the </span>Sahel<span>, abject poverty, fast population growth, climate change, recurrent food and nutrition crises, armed conflicts and violence converge dangerously. </span>The chiefs of the Sahel grew rich from taxing traders.
Scientists detail the number of jobs that are created when a coal plant is built.
Scientists publish articles detailing the environmental effects of burning fossil fuels.
Options 3 and 5.
<u>Explanation:</u>
Fossil fuels are one of the most oldest form of energy that has been used in the world. Some of the types of fossil fuels used as sources of energy are coal, natural gas, petroleum.
But the disadvantage with the use of these as the sources of energy are that they get renewed at a very slow pace and they cause great damage to the environment. The amount of smoke released with the use of this is very high and cause pollution.
<span>Fossils symbol and mountain belts are very important
for geologists in deciding where to move the continents.
Fossils and mountain belts can give the
geologist ideas about the history of the certain continents and what are the
animals that stayed and died in that place.
Both can also help the geologists to identify if the particular continent is a
safe place to live on because the animals of a long time ago stayed on that
place. So maybe the place is safe from water high tide and is not a moving
plates.</span>
The Romanovs were to be killed because they were the supreme symbols of autocracy. The irony was that, in Yekaterinburg, the Bolsheviks had turned them into the opposite of aristocrats.
Australia is an island country, and besides the big main island and Tasmania, it has around 12,000 islands plus on its territory. Since it doesn't have any land borders, its border line is actually the sum of all coastlines of all islands in its territory, and that accounts for 70,000 km.
New South Wales is the biggest state in the country, and it is roughly around 10% of the total territory of Australia. Its border is 4,635 km, so that means it has 6.62% of the total border line of Australia.