Answer the following question given this paragraph: Models may be physical, conceptual, or mathematical. Q: Models may be physical, conceptual, or what else? Choices: - experimental - fundamental - theoretical - mathematical A:
mathematical
(Question)
Answer the following question given this paragraph: A: Like the strings of cello, anything that vibrates produces waves of energy that travel through matter. For example, when you throw a pebble into a pond, waves of energy travel from the pebble through the water in all directions. Like an incandescent light bulb, anything that glows consists of matter that produces light energy. For example, fireflies use chemicals to produce light energy. Like a moving tennis racket, anything that moves has energy because it is moving, including your eyes as they read this sentence. Q: Like the strings of cello, anything that vibrates produces waves of what? Choices: - heating - light - sound - energy A:
(Answer)
energy
Ques: Answer the following question given this paragraph: Water has high surface tension because of extensive hydrogen bonding. Q: What has high surface tension because of extensive hydrogen bonding? Choices: - hydrocarbons - air - gases - water A:
Ans: water
(Q).
Answer the following question given this paragraph: Enzymes are biochemical catalysts, which means that they speed up the rate of a specific chemical reaction. A process that might take weeks in the absence of an enzyme can occur in milliseconds if the proper enzyme is present. A generic enzyme-catalyzed reaction could be represented as follows:. Q: Enzymes speed up the rate of a specific chemical reaction and is therefore known as what? Choices: - genetic catalysts - characteristic catalysts - protein catalysts - biochemical catalysts A:
(A).
biochemical catalysts
Ques:Answer the following question given this paragraph: cells. The ovaries produce estradiol and progesterone, which cause secondary sex characteristics and prepare the body for childbirth. Q: The ovaries produce estradiol and progesterone, which cause secondary sex characteristics and prepare the body for? Choices: - breathing - adulthood - movement - childbirth A:

Ans:childbirth
Ques: Answer the following question given this paragraph: Poor air quality started to become a serious problem after the Industrial Revolution. The machines in factories burned coal. This released a lot of pollutants into the air. After 1900, motor vehicles became common. Cars and trucks burn gasoline, which adds greatly to air pollution. Q: During what time period did poor air quality become a problem? Choices: - Chernobyl disaster - coal industry boom - second world war - industrial revolution A:
Ans:
industrial revolution