Q: What do aquatic mollusk species use for respiration? Choices: - lungs - phototropism - pores - gills A:
gills

Q: Which kind of irrigation uses much less water than other methods? Choices: - constant - mist - solar - drip A:
drip

Q: Q: An object's energy due to motion is known as? Choices: - residual energy - inertia - thermodynamic energy - kinetic energy A:
A: kinetic energy

Question: Q: H2o is the chemical formula for what? Choices: - glass - smog - salt - water A:
Answer: water

*Question*
Q: Because the masses of subatomic particles are so small, a new unit, called what, was defined? Choices: - atomic volume unit - particle mass unit - nuclear mass unit - atomic mass unit A:
**Answer**
atomic mass unit

Q: What is the amount of time a molecule stays in a reservoir known as? Choices: - known time - reservoir time - suitable time - residence time A:
residence time