Input: Answer this question:
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.
Answer: Sound waves with large amplitudes have more energy and sound louder.

*Question*: Which of the following best describes an atom? OPTIONS:
- protons and electrons grouped together in a random pattern
- protons and electrons grouped together in an alternating pattern
- a core of protons and neutrons surrounded by electrons
- a core of electrons and neutrons surrounded by protons
*Answer*: a core of protons and neutrons surrounded by electrons

question:
According to the periodic table, all of the following are metals except
OPTIONS:
- sodium
- zinc
- fluorine
- calcium

answer:
fluorine

[Q]: Extinction of a species is most likely to occur as a result of
===
OPTIONS:
- evolution
- migration
- selective breeding
- environmental changes
****
[A]: environmental changes

question below:
Which occurs as a result of Earth's tilt on its rotating axis?
OPTIONS:
- movement of the tides
- prevalent or trade winds
- seasonal changes in the climate
- light and dark changes of day and night
answer below:
seasonal changes in the climate

question below:
A small, fast-moving river in is in a V-shaped valley on the slope of a mountain. If you follow the river to where it passes through a plain, what will the river most likely look like compared with how it looked on the mountain?
OPTIONS:
- Much the same
- Deeper and faster
- Slower and wider
- Straighter
answer below:
Slower and wider