Answer the following question given this paragraph: An electromagnetic wave is a transverse wave that can travel across space as well as through matter. When it travels through space, it doesn't lose energy to a medium as a mechanical wave does. Q: When traveling through space what do mechanical waves lose? Choices: - Mass - Speed - Force - energy A:
energy
(Question)
Answer the following question given this paragraph: Q: Foresters commonly inoculate pine seedlings with a type of what to promote growth? Choices: - yeast - soil - proteins - fungi A:
(Answer)
fungi
Ques: Answer the following question given this paragraph: After trees are cut, logging companies often move these materials down a river to a sawmill where they can be shaped into building materials or other products. The logs float on the water because they are less dense than the water they are in. Knowledge of density is important in the characterization and separation of materials. Information about density allows us to make predictions about the behavior of matter. Q: What property allows cut logs to float on water? Choices: - polarity - heat - precipitation - density A:
Ans: density
(Q).
Answer the following question given this paragraph: The habitat is the physical area where a species lives. Many factors are used to describe a habitat. The average amount of sunlight received each day, the range of annual temperatures, and average yearly rainfall can all describe a habitat. These and other abiotic factors will affect the kind of traits an organism must have in order to survive there. The temperature, the amount of rainfall, the type of soil and other abiotic factors all have a significant role in determining the plants that invade an area. The plants then determine the animals that come to eat the plants, and so on. A habitat should not be confused with an ecosystem: the habitat is the actual place of the ecosystem, whereas the ecosystem includes both the biotic and abiotic factors in the habitat. Q: What is the physical area where a specie lives? Choices: - marine biome - ecosystem - farmland - habitat A:
(A).
habitat
Ques:Answer the following question given this paragraph: The study of viruses is known as virology and people who study viruses are known as virologists . Viruses infect and live inside the cells of living organisms. When viruses infect the cells of their host, they may cause disease. For example, viruses cause AIDS (Acquired immune deficiency syndrome), influenza (flu), chicken pox, and the common cold. Therapy is sometimes difficult for viral diseases. Antibiotics have no effect on viruses and only a few antiviral drugs are available for some diseases. One of the best ways to prevent viral diseases is with a vaccine , which produces immunity . But vaccines are available for only a few diseases. Q: What do vaccines produce to combat viral diseases? Choices: - sterility - sensitivity - hyperthyroidism - immunity A:

Ans:immunity
Ques:Answer the following question given this paragraph: Investigation is at the heart of science. It is how scientists do research. Scientific investigations produce evidence that helps answer questions and solve problems. If the evidence cannot provide answers or solutions, it may still be useful. It may lead to new questions or problems for investigation. As more knowledge is discovered, science advances. Q: In science, what process produces evidence that helps answer questions and solve problems? Choices: - information - manipulation - suspension - investigation A:

Ans:
investigation