Answer:
The scientists and educators in the Mojave studied microbial life in the desert and the similarities of geologic formations to those of the moon and Mars. Teams also used a hot air balloon to test new remote-sensing equipment to detect subterranean formations. So they are going to keep furthering things like this.
Explanation:
It is definitely D. Congress fought so hard to keep the Union together prior to the Civil War that they instilled a gag order against speaking of the slavery issue in Congress.
<span>"Improved land and water transportation allowed the U.S. to develop more industry and create a cash crop agricultural system." is the choice you're looking for. </span>
Smallpox, the world health organization came up with a vaccine and had everyone vaccinated
