Answer:
one of them is the coronavrius
Explanation:
<u>B - A theory that stated if Vietnam fell to communism the rest of the region would soon follow.</u>
<u></u>
People were afraid that once Vietnam fell into communism that surrounded places would soon follow. Vietnam would be the first domino to fall and hit the rest of the region causes more communism.
To be basic, it harnesses the greenery. So it prevents the greenhouse emissions from harming any greenfields from becoming brownfields
