*Question*
Q: What system consists of structures that produce eggs, secrete female sex hormones, and ultimately enable birth of a fetus? Choices: - male reproductive system - female uterus system - female hormone system - female reproductive system A:
**Answer**
female reproductive system

*Question*
Q: What forms the changing shapes of sand dunes? Choices: - temperature - humidity - magnetism - wind A:
**Answer**
wind

*Question*
Q: What is the name for the amount of water vapor in the air? Choices: - ambient - heat - viscosity - humidity A:
**Answer**
humidity

*Question*
Q: What term refers to change in position over time? Choices: - Position Replacement - acceleration - Direction Replacement - velocity A:
**Answer**
velocity