Answer the following question given this paragraph: Topsoil usually does not have very small particles like clay. Clay-sized particles are carried to lower layers as water seeps down into the ground. Many minerals dissolve in the fresh water that moves through the topsoil. These minerals are carried down to the lower layers of soil. Q: What layer of soil usually does not have very small particles like clay? Choices: - undersoil - sediment - silt - topsoil A:
topsoil
Answer the following question given this paragraph: Earth is warmed by energy that radiates from the sun. Earth radiates some of the energy back into space. Greenhouse gases (GHGs) trap much of the re-radiated energy, causing an increase in the temperature of the atmosphere close to the surface. Q: What is the major source of warmth for earth? Choices: - the Moon - seasons - equator - the sun A:
the sun
Q: Answer the following question given this paragraph: Q: Red-green color blindness is an example of a sex-linked condition caused by what? Choices: - phenotype - dominant gene - genetic disorder - recessive allele A:
A: recessive allele
Question: Answer the following question given this paragraph: Embryonic Development (Weeks 48). Most organs develop in the embryo during weeks 4 through 8. If the embryo is exposed to toxins during this period, the effects are likely to be very damaging. Can you explain why? (Note: the drawings of the embryos are not to scale. ). Q: Exposure to toxins is most damaging during weeks 4 through 8 of the embryonic stage due to development of what during this period? Choices: - samples - faith - pain - organs A:
Answer: organs
*Question*
Answer the following question given this paragraph: Minerals are divided into groups. The groups are based on their chemical composition. Q: Minerals are grouped based on what? Choices: - carbon composition - mineral composition - density - chemical composition A:
**Answer**
chemical composition
Q: Answer the following question given this paragraph: Cardiac muscle is also an involuntary muscle, found only in the heart. The cardiac muscle fibers all contract together, generating enough force to push blood throughout the body. What would happen if this muscle was under conscious or voluntary control?. Q: What involuntary muscle is found only in the heart? Choices: - physiological muscle - respiratory muscle - digestive muscle - cardiac muscle A:
A: cardiac muscle