Answer the following question given this paragraph: Composite volcanoes are common along convergent plate boundaries. When a tectonic plate subducts, it melts. This creates the thick magma needed for these eruptions. The Pacific Ring of Fire is dotted by composite volcanoes. Q: What happens to a tectonic plate when it subducts? Choices: - it warms - it cracks - it sinks - it melts A:
it melts
(Question)
Answer the following question given this paragraph: Respiratory Compensation Respiratory compensation for metabolic acidosis increases the respiratory rate to drive off CO2 and readjust the bicarbonate to carbonic acid ratio to the 20:1 level. This adjustment can occur within minutes. Respiratory compensation for metabolic alkalosis is not as adept as its compensation for acidosis. The normal response of the respiratory system to elevated pH is to increase the amount of CO2 in the blood by decreasing the respiratory rate to conserve CO2. There is a limit to the. Q: The normal response of the respiratory system to elevated ph is to increase the amount of what in the blood? Choices: - glucose - acid - red blood cells - co2 A:
(Answer)
co2
Ques: Answer the following question given this paragraph: Lightning is the discharge of static electricity that has built up on clouds. Every year, the earth experiences an average of 25 million lightning strikes. Lightning bolts travel at speeds up to 60,000 miles per second, and can reach temperatures of 50,000F, which is five times the temperature of the surface of the sun. The energy contained in a single lightning strike could light a 100 Watt light bulb 24 hours per day for 90 days. Q: Where do lightnings build up? Choices: - stratosphere - air - troposphere - clouds A:
Ans: clouds
(Q).
Answer the following question given this paragraph: Condensation is the change of state from a gas to a liquid. Q: What is the process of changing something from a gas to a liquid? Choices: - sublimation - combustion - fermentation - condensation A:
(A).
condensation
Ques:Answer the following question given this paragraph: A person is able to lift the entire rear end of the automobile using only one hand with the hydraulic jack shown in the image. Hydraulic systems are similar to simple machines in that they can produce very large mechanical advantages. Q: A hydraulic jack that makes it possible to lift a car easily is an example of what, meaning it produces mechanical advantages? Choices: - quantum physics - simple weapon - complex machines - simple machine A:

Ans:simple machine
Answer the following question given this paragraph: Molecular and Formula Masses The molecular mass of a substance is the sum of the average masses of the atoms in one molecule of a substance. It is calculated by adding together the atomic masses of the elements in the substance, each multiplied by its subscript (written or implied) in the molecular formula. Because the units of atomic mass are atomic mass units, the units of molecular mass are also atomic mass units. The procedure for calculating molecular masses is illustrated in Example 1. Q: What is calculated by adding together the atomic masses of the elements in the substance, each multiplied by its subscript (written or implied) in the molecular formula? Choices: - mass effect - fractional mass - magnetic mass - molecular mass A:
molecular mass