Answer:
O The crude birthrate remains higher than the crude death rate.
O Economic changes stabilize the crude death rate.
Explanation:
The above is the actual reason why the total population continues to grow.
Anything can happen, everyday scientist are finding new electrons, metals, etc.
Over the next 50 years we could see way more metals, gas, etc.Knowing that anything can happen we would probaly see in increace.About 50 years ago our periodic table has less gas, etc on it.Back when the peridoc table was made there where barley any elements on it.There was a process of more elements beig added.You will never know when a new element will be added until they day it is.
B
It will give more info because it know what it will say
1. Production possibilities curve
2. American free enterprise
3. Right
4. Search
It should be A since fish are the omly animals there without lungs...
