Q: A person cuts down a living oak tree. The person burns the wood from the oak tree to boil water. Which sequence correctly orders the energy transformations that occurred from the living tree to the boiling of water? OPTIONS:
- light energy -> chemical energy -> thermal energy
- thermal energy -> chemical energy -> light energy
- chemical energy -> mechanical energy -> electrical energy
- electrical energy -> mechanical energy -> chemical energy
A: light energy -> chemical energy -> thermal energy

Some of Earth's water is stored underground in porous rock formations known as aquifers. Which of these could use up groundwater in aquifers?
OPTIONS:
- abundant rain in the Ozarks
- excessive pumping from wells
- dams on the lower Mississippi
- community water conservation

excessive pumping from wells

Q: Which is an example of a chemical change? ---- OPTIONS:
- a rusting car fender
- a spinning top
- a spilled bucket of water
- a melting popsicle

A: a rusting car fender

When sound waves with large amplitude are compared to sound waves with small amplitude, which of the following is true?
===
OPTIONS:
- Sound waves with large amplitudes have less energy and sound quieter.
- Sound waves with large amplitudes have more energy and sound louder.
- Sound waves with large amplitudes have the same energy and sound quieter.
- Sound waves with large amplitudes have the same energy and sound louder.

Sound waves with large amplitudes have more energy and sound louder.

Question:
Although change in multicellular species usually takes thousands of years, some species of bacteria undergo major changes in just a few years. One reason for this difference is that these bacteria
OPTIONS:
- are microscopic
- do not contain DNA
- reproduce very quickly
- cause infectious diseases
Answer:
reproduce very quickly

Question:
If a species is no longer able to reproduce, it will
OPTIONS:
- adapt to its environment
- become immune to disease
- become extinct
- increase its population
Answer:
become extinct