A spacecraft left Earth to collect soil samples from Mars. Which statement is true about the strength of Earth’s gravity on the moving spacecraft?
A.
It decreases.
B.
It increases.
C.
It remains the same.
D.
It doesn’t affect the spacecraft.

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased