I would believe its either Continental Drift or plate tectonics
The world's economies interact with each other by trading. For example, if oil is easier to access in Saudi Arabia than America, it will be less expensive, so we trade. The economies affect one another by giving each other easier access to different resources and products.
I think the answer is either C or D
It helps in a big way because it preserves the land and
replenishes the trees that were cut down.
It also gives animals sanctuary when the new trees grow and most
important of all it prevents erosion and floods that not only destroys the
environment but also endangers man as well.
Answer:
2x+9 when x equals 3 is 2*3+9
=15
Explanation:
