Question

By the year 2050, the world���s population is projected to be _______.

a. 3 billion
b. 5 billion
c. 7 billion
d. 9 billion user: which of the following needs must be met to achieve sustainability?
a. water
b. energy
c. environmental
d. all of the above

Answer 1

D and D

Step-by-step explanation:

I just know.

Answer 2

1. By the year 2050, the word's population is projected to be D) 9 million.
2. D) All of the above (water, energy, and environmental) needs must be met to achieve sustainability.