Answer the following question given this paragraph: Q: What do ranchers fear will happen if wolves return? Choices: - loss of environment - human predation - vegetation predation - livestock predation A:
livestock predation
Answer the following question given this paragraph: Only a tiny fraction of the ocean floor has ever been studied. Why? Humans can't travel deep below the water's surface without special vehicles. The pressure of the water is too great. Total darkness and extreme cold make it even more difficult. That's why people have worked for decades to invent technology for studying the ocean floor. Q: What is the name of artificial barriers that people build to protect shorelines? Choices: - seawalls - domes - outcroppings - breakwaters A:
breakwaters
Q: Answer the following question given this paragraph: Q: What regulates the passage of blood into capillary beds? Choices: - bicellular sphincters - diocesan sphincters - cell membrane - precapillary sphincters A:
A: precapillary sphincters
Question: Answer the following question given this paragraph: Not only salt, but many other solutes can dissolve in water. In fact, so many solutes can dissolve in water that water has been called the universal solvent. Even rocks can dissolve in water, which explains the cave that opened this article. A solute that can dissolve in a given solvent, such as water, is said to be soluble in that solvent. Conversely, a solute that cannot dissolve in a given solvent is said to be insoluble in that solvent. Q: What liquid is referred to as the "universal solvent"? Choices: - bromine - gasoline - blood - water A:
Answer: water
*Question*
Answer the following question given this paragraph: The concentration of a solution is the amount of solute in a given amount of solution. A dilute solution has a low concentration of solute. A concentrated solution has a high concentration of solute. Q: What term describes the amount of solute in a given amount of solution? Choices: - density - temperature - cloudiness - concentration A:
**Answer**
concentration
(Q).
Answer the following question given this paragraph: Hydrogen sulfide is a noxious and toxic gas produced from decaying organic matter that contains sulfur. A lethal concentration in rats corresponds to an inhaled dose of 715 molecules per million molecules of air. How many molecules does this correspond to per mole of air? How many moles of hydrogen sulfide does this correspond to per mole of air?. Q: Hydrogen sulfide is a noxious and toxic gas produced from decaying organic matter that contains what? Choices: - tin - methane - helium - sulfur A:
(A).
sulfur