Answer:
50%
Explanation:
One in five species on Earth now faces extinction, and that will rise to 50% by the end of the century unless urgent action is taken.
Answer:The Alps is a mountain range in Europe, the Sahara is located in Northern Africa, and Japan is a group of many islands in the Pacific Ocean.
Explanation:
Answer:
density is the objects mass per volume when weight is the force in which the gravity pulls you down. hope this helps !
<span>first thing you need to do is find the area of the circle
A=(pi)r^2
You don't know r, but you do know the diameter is 10, and the diameter is twice the radius so r=5
Then plug that into the area formula, and you'll get A=25pi or 78.54 ft^2
If one bag covers 2 ft^2, then divide your area by 2 and round up to get the number of bags of concrete (40)
hope i helped !!!</span>
Separation by density is the answer
