Q: Answer the following question given this paragraph: Q: What basic plant structure can add support and anchorage? A:

OPTIONS:
- lower leaves
- soils
- stems
- roots

A: roots

Q: Answer the following question given this paragraph: Comets carry materials in from the outer solar system. Comets may have brought water into the early Earth. Other substances could also have come from comets. Q: What is rusting an example of? A:

OPTIONS:
- radiation change
- Decomposition
- contamination change
- chemical change

A: chemical change

Q: Answer the following question given this paragraph: In the above equation for pressure, force is expressed in Newtons (N) and area is expressed in square meters (m 2 ). Therefore, pressure is expressed in N/m 2 , which is the SI unit for pressure. This unit is also called the Pascal (Pa) . It is named for the scientist Blaise Pascal whose discoveries about pressure in fluids led to a law of the same name. Pressure may also be expressed in the kilopascal (kPa), which equals 1000 Pascals. For example, the correct air pressure inside a mountain bike tire is usually about 200 kPa. Q: What unit of pressure is named for the scientist whose discoveries about pressure in fluids led to a law of the same name? A:

OPTIONS:
- ohm
- newton
- joule
- pascal

A: pascal

Q: Answer the following question given this paragraph: When a wave meets a barrier, it reflects and travels back the way it came. The reflected wave may interfere with the original wave. If this occurs in precisely the right way, a standing wave can be created. The types of standing waves that can form depend strongly on the speed of the wave and the size of the region in which it is traveling. Q: A standing wave is created when what type of wave interferes with the original wave? A:

OPTIONS:
- realized wave
- translated wave
- refracted wave
- reflected wave

A:
reflected wave