Answer the following question given this paragraph: Q: Which organ of the body do large tapeworms attack or block? Choices: - liver - heart - kidneys - intestines A:
intestines
Answer the following question given this paragraph: Q: The hot liquid rock on the surface is called what? Choices: - Molten - volcano - flow - lava A:
lava
Q: Answer the following question given this paragraph: At the top of the stratosphere is a thin layer called the stratopause. It acts as a boundary between the stratosphere and the mesosphere. Q: What is the name of the thin layer that acts as a boundary between the stratosphere and the mesosphere? Choices: - spirogyra - ozone layer - spicule - stratopause A:
A: stratopause
Question: Answer the following question given this paragraph: When two or more pure substances are combined together, a mixture is formed. Unlike pure substances, mixtures have a variable composition. Variable composition indicates that the relative proportions of the mixtures components may vary, and they can be separated by physical methods. There are two main types of mixtures. Q: Unlike pure substances, mixtures have a what? Choices: - efficient composition - unique composition - complex composition - variable composition A:
Answer: variable composition
*Question*
Answer the following question given this paragraph: Check Your Understanding Define nodes and antinodes. Solution Nodes are areas of wave interference where there is no motion. Antinodes are areas of wave interference where the motion is at its maximum point. Q: Solution nodes and antinodes are both areas of wave interference, but they differ in the presence of what condition? Choices: - radiation - gravity - speed - motion A:
**Answer**
motion
(Q).
Answer the following question given this paragraph: Cooling and forming crystals. Deep within the Earth, temperatures can get hot enough to melt rock. This molten material is called magma. As it cools, crystals grow, forming an igneous rock. The crystals will grow larger if the magma cools slowly, as it does if it remains deep within the Earth. If the magma cools quickly, the crystals will be very small. Q: What is the molten material deep within the earth? Choices: - volcanic mass - crystals - lava - magma A:
(A).
magma