Answer the following question given this paragraph: Surface waves travel along the ground outward from an earthquake's epicenter. Surface waves are the slowest of all seismic waves. They travel at 2.5 km (1.5 miles) per second. There are two types of surface waves. Love waves move side-to-side, much like a snake. Rayleigh waves produce a rolling motion as they move up and backwards ( Figure above ). Surface waves cause objects to fall and rise, while they are also swaying back and forth. These motions cause damage to rigid structures during an earthquake. Q: What type of waves are the slowest of all seismic waves? Choices: - core waves - thick waves - central waves - surface waves A:
surface waves
(Question)
Answer the following question given this paragraph: The solution to the last part of the example shows that speed is inversely proportional to the square of the radius of the tube, making for large effects when radius varies. We can blow out a candle at quite a distance, for example, by pursing our lips, whereas blowing on a candle with our mouth wide open is quite ineffective. In many situations, including in the cardiovascular system, branching of the flow occurs. The blood is pumped from the heart into arteries that subdivide into smaller arteries (arterioles) which branch into very fine vessels called capillaries. In this situation, continuity of flow is maintained but it is the sum of the flow rates in each of the branches in any portion along the tube that is maintained. The equation of continuity in a more general form becomes . Q: In the body, what essential substance is pumped from the heart into arteries and then eventually into capillaries? Choices: - spinal fluid - water - lymphatic Fluid - blood A:
(Answer)
blood
Ques: Answer the following question given this paragraph: A space station was established far from the gravitational field of Earth. Extended stays in zero gravity are not healthy for human beings. Thus, for the comfort of the astronauts, the station is rotated so that the astronauts feel there is an internal gravity. The rotation speed is such that the apparent acceleration of gravity is . The direction of rotation is counter-clockwise. If the radius of the station is , what is its rotational speed, ?. Q: Extended stays in zero gravity are not healthy for human beings. thus, for the comfort of the astronauts, the station is rotated so that the astronauts feel there is what? Choices: - revealed gravity - still gravity - Fixed Gravity - internal gravity A:
Ans: internal gravity
(Q).
Answer the following question given this paragraph: Q: In aquatic communities, the main producers are photosynthetic protists and what? Choices: - arthropods - eukaryotes - crustaceans - prokaryotes A:
(A).
prokaryotes
Ques:Answer the following question given this paragraph: Figure 7.8 Following meiosis, each gamete has one copy of each chromosome. Nondisjunction occurs when homologous chromosomes (meiosis I) or sister chromatids (meiosis II) fail to separate during meiosis. Q: Each gamete will have one copy of each chromosome following which process involving cell division? Choices: - osmosis - genomes - mutations - meiosis A:

Ans:meiosis
Answer the following question given this paragraph: Cleaning groundwater in an aquifer requires bioremediation or chemical remediation. Bioremediation uses microorganisms to consume a pollutant. Chemical remediation destroys the contaminant. Q: What do you call a process that uses microorganisms to consume a pollutant? Choices: - siltation - filtration - biodegradation - bioremediation A:
bioremediation