Ques:Answer the following question given this paragraph: Weight is a measure of the force of gravity pulling down on an object. Buoyant force pushes up on an object. Weight and buoyant force together determine whether an object sinks or floats. This is illustrated in Figure below . Q: What is the measure of the force of gravity pulling down on an object called? Choices: - factor - mass - volume - weight A:

Ans:weight
-----
Ques:Answer the following question given this paragraph: The number of waves that pass a fixed point in a given amount of time is wave frequency . Wave frequency can be measured by counting the number of crests (high points) of waves that pass the fixed point in 1 second or some other time period. The higher the number is, the greater the frequency of the waves. The SI unit for wave frequency is the hertz (Hz) , where 1 hertz equals 1 wave passing a fixed point in 1 second. The Figure below shows high-frequency and low-frequency transverse waves. You can simulate transverse waves with different frequencies at these URLs: http://phet. colorado. edu/en/simulation/wave-on-a-string and http://zonalandeducation. com/mstm/physics/waves/partsOfAWave/waveParts. htm. Q: What are waves that pass a fixed point in a given amount of time called? Choices: - tendency frequency - combination frequency - radio frequency - wave frequency A:

Ans:wave frequency
-----
Ques:Answer the following question given this paragraph: and procaine. Not only do catalysts greatly increase the rates of reactions, but in some cases such as in petroleum refining, they also control which products are formed. The acceleration of a reaction by a catalyst is called catalysis. Q: Catalysts can greatly increase the rates of chemical what? Choices: - photosynthesis - decay - effects - reactions A:

Ans:reactions
-----
Ques:Answer the following question given this paragraph: Q: What are the two types of vascular tissue? Choices: - ectoderm and phloem - phloem and phlegm - cytoplasm and ectoplasm - xylem and phloem A:

Ans:
xylem and phloem
-----