Answer the following question given this paragraph: Experiments show that each O2 molecule has two unpaired electrons. The Lewis-structure model does not predict the presence of these two unpaired electrons. Unlike oxygen, the apparent weight of most molecules decreases slightly in the presence of an inhomogeneous magnetic field. Materials in which all of the electrons are paired are diamagnetic and weakly repel a magnetic field. Paramagnetic and diamagnetic materials do not act as permanent magnets. Only in the presence of an applied magnetic field do they demonstrate attraction or repulsion. Q: Experiments show that each o2 molecule has two unpaired what? A:
OPTIONS:
- quarks
- protons
- neutrons
- electrons
electrons

Answer the following question given this paragraph: As the fast-moving cold air mass keeps advancing, so does the cold front. Cold fronts often bring sudden changes in the weather. There may be a thin line of storms right at the front that moves as it moves. In the spring and summer, these storms may be thunderstorms and tornadoes. In the late fall and winter, snow storms may occur. After a cold front passes, the cold air mass behind it brings cooler temperatures. The air is likely to be less humid as well. Can you explain why?. Q: Cold fronts in winter may bring what type of storm? A:
OPTIONS:
- showers
- monsoon
- typhoon
- snow storm

Answer: snow storm

Question: Answer the following question given this paragraph: When done regularly, aerobic activities, such as cycling, make the heart stronger. Other aerobic activities include mowing lawn, shoveling snow and cross country skiing. Q: Cycling, shoveling snow and cross-country skiing are examples of what kind of heart-strengthening activity? A:
OPTIONS:
- metabolism
- anaerobic
- exercise
- aerobic
Answer: aerobic

input with options: Answer the following question given this paragraph: In this lesson, you learned about chemical bonds in a water molecule. The bonds form between atoms of hydrogen and oxygen when they share electrons. This type of bond is an example of a covalent bond. Q: How do you calculate the atomic mass of an element? A:
OPTIONS:
- add neutrons and electrons
- count the electrons
- multiply protons by neutrons
- add the protons and neutrons together
output: add the protons and neutrons together

Q: Answer the following question given this paragraph: 12.3 The eukaryotic cell cycle is regulated by a molecular control system. Q: The eukaryotic cell cycle is regulated by a what? A:

OPTIONS:
- anti-lock control system
- protons control system
- nucleus control system
- molecular control system

A: molecular control system

Answer the following question given this paragraph: The last property above requires some additional explanation. We are all familiar with the process of dissolution on a large scale. If you stir a spoonful of salt into a glass of water, the salt crystals are broken down and seem to disappear into the water. On the atomic level, the dissolution of an ionic compound occurs when water interacts with the ions in the crystal lattice, causing the lattice to break apart ( Figure below ):. Q: On the atomic level, the dissolution of an ionic compound occurs when water interacts with the what in the crystal lattice? A:
OPTIONS:
- atoms
- fractals
- particles
- ions
ions