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:
concentration
(Question)
Answer the following question given this paragraph: Q: The arid environment of a desert, for instance, can quickly deplete an animal of what? Choices: - strength - protein - air - water A:
(Answer)
water
Ques: Answer the following question given this paragraph: More than 1000 different enzymes are necessary for human life. Many enzymes are needed for the digestion of food. Two examples are amylase and pepsin. Both are described in the Figure below . Q: Amylase and pepsin are examples of enzymes needed for what process? Choices: - fermentation - absorption - filtration - digestion A:
Ans: digestion
(Q).
Answer the following question given this paragraph: Waves interact not only with matter in the ways described above. Waves also interact with other waves. This is called wave interference . Wave interference may occur when two waves that are traveling in opposite directions meet. The two waves pass through each other, and this affects their amplitude. How amplitude is affected depends on the type of interference. Interference can be constructive or destructive. Q: What is it called when waves interact with other waves? Choices: - combination interference - wave impact - wave collision - wave interference A:
(A).
wave interference
Ques:Answer the following question given this paragraph: Genes are a major determinant of human skin color. However, exposure to ultraviolet radiation can increase the amount of pigment in the skin and make it appear darker. Q: Exposure to what can increase the amount of pigment in the skin and make it appear darker? Choices: - gamma rays - sunlight - nuclear radiation - ultraviolet radiation A:

Ans:ultraviolet radiation
Answer the following question given this paragraph: If you look at a star through a prism, you will see a spectrum . The spectrum is the range of colors seen in a rainbow. The spectrum has specific dark bands where elements in the star have absorbed light of certain energies. An astronomer can use these lines to determine which elements are in a distant star. In fact, the element helium was first discovered in our Sun, not on Earth. This was done by analyzing the absorption lines in the spectrum of the sun. Q: What will you see if you look at a star through a prism? Choices: - kaleidoscope - rainbow - spots - spectrum A:
spectrum