Q: 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
A: Slower and wider

A geologist found fossils of horse bones in different rock layers of a canyon. The fossils in the lower levels show shorter bones than those in the upper-level fossils. Which conclusion is based on the geologist's observations?
OPTIONS:
- Horse's reproduce using two parents.
- Horse's became larger over time.
- Smaller Horse's went extinct, and then larger Horse's formed.
- Smaller Horse's are better suited to the environment than larger Horse's.

Horse's became larger over time.

Q: How do scientists know that some mountains were once at the bottom of an ocean? ---- OPTIONS:
- Freshwater rivers flow to the ocean.
- Saltwater fish are found in some mountain streams.
- Dinosaur bones have been discovered in the mountains.
- Marine fossils have been found on the peaks of some mountains.

A: Marine fossils have been found on the peaks of some mountains.

What is the outermost structure in a plant cell?
===
OPTIONS:
- cell membrane
- cytoplasm
- cell wall
- chloroplast

cell wall

Question:
Which of the following statements best explains why earthquakes occur more frequently in California than in Massachusetts?
OPTIONS:
- The rock found in California is igneous, but the rock found in Massachusetts is sedimentary.
- California is located on the boundary of two crustal plates, but Massachusetts is not.
- The rock under California is soft, but the rock under Massachusetts is hard.
- California is located on a continental plate, but Massachusetts is not.
Answer:
California is located on the boundary of two crustal plates, but Massachusetts is not.

Q: A wet towel will dry when it is left in the Sun. Which process occurs to make this happen? OPTIONS:
- melting
- boiling
- condensation
- evaporation
A:
evaporation