Decomposers break down dead material
To change the equation, you'd have to take the square root of both sides. When you do this, x^2 cancels out leaving you with x = sqrt(y)
If you need help on the other ones, all you have to do is solve for x by using either addition/subtraction or dividing/multiplying.
<span>The answer to this question is COAL. Coal is used
as a solid fossil fuel that people used the most. Coals are used for
electricity, fuel, and heat. Coals that are mined are brought to power plants
to use it as electricity. Coals are being mined from the ground and the country
China is the world’s top coal producer since 1983.</span>
I think 1991 it was the fall of soviet union