Answer the following question given this paragraph: The curie (Ci) is one measure of the rate of decay (named after Pierre and Marie Curie). One curie is equivalent to 3.7 10 10 disintegrations per second. Since this is obviously a large and unwieldy number, radiation is often expressed in millicuries or microcuries (still very large numbers). Another measure is the becquerel (Bq) , named after Henri Becquerel. The becquerel is defined as an activity of one disintegration/second. Both of these units are concerned with the disintegration rate of the radioactive isotope and give no indication of dosage to the target material. Q: The curie (ci) is one measure of the rate of what? A:
OPTIONS:
- spin
- division
- growth
- decay
decay

Answer the following question given this paragraph: Physical science is the study of matter and energy. It includes chemistry, which focuses on matter, and physics, which focuses on energy. Q: What is the study of matter and energy referred to as? A:
OPTIONS:
- biology
- geology
- cosmology
- physical science

Answer: physical science

Question: Answer the following question given this paragraph: In some amines, the nitrogen atom replaces a carbon atom in an aromatic hydrocarbon. Pyridine (Figure 20.17) is one such heterocyclic amine. A heterocyclic compound contains atoms of two or more different elements in its ring structure. Q: What type of compound contains atoms of two or more different elements in its ring structure? A:
OPTIONS:
- aldehyde
- polymer
- hydrocarbon
- heterocyclic
Answer: heterocyclic

input with options: Answer the following question given this paragraph: After the blood in the pulmonary capillaries becomes saturated with oxygen, it leaves the lungs and travels to the heart. The heart pumps the oxygen-rich blood into arteries, which carry it throughout the body. Eventually, the blood travels into capillaries that supply body tissues. These capillaries are called peripheral capillaries . Q: After the blood in the pulmonary capillaries becomes saturated with oxygen, it leaves the lungs and travels where? A:
OPTIONS:
- to the lungs
- to the kidneys
- to the brain
- to the heart
output: to the heart

Q: Answer the following question given this paragraph: A mixture is a combination of two or more substances in any proportion. This is different from a compound, which consists of substances in fixed proportions. The substances in a mixture also do not combine chemically to form a new substance, as they do in a compound. Instead, they just intermingle and keep their original properties. The lemonade pictured above is a mixture because it doesn't have fixed proportions of ingredients. It could have more or less lemon juice, for example, or more or less sugar, and it would still be lemonade. Q: In what do substances combine chemically to form a new substance? A:

OPTIONS:
- suspension
- component
- element
- compound

A: compound

Answer the following question given this paragraph: Some birds have lost the ability to fly during the course of their evolution. Several flightless birds are shown in Figure below . They include the ostrich, kiwi, rhea, cassowary, and moa. All of these birds have long legs and are adapted for running. The penguins shown in the figure are also flightless birds, but they have a very different body shape. That's because they are adapted for swimming rather than running. Q: The ostrich, kiwi, rhea, cassowary, and moa are examples of what kind of birds? A:
OPTIONS:
- predators
- raptors
- prehistoric
- flightless
flightless