input: OPTIONS:
- six - membered rings
- four - membered rings
- electron shell
- eight-membered rings Now, answer this question: Answer the following question given this paragraph: Larger amounts of sulfur also come from hydrogen sulfide recovered during the purification of natural gas. Sulfur exists in several allotropic forms. The stable form at room temperature contains eight-membered rings, and so the true formula is S8. However, chemists commonly use S to simplify the coefficients in chemical equations; we will follow this practice in this book. Q: What does the stable form of sulfur at room temperature contain? A:
A:
output: eight-membered rings

Answer the following question given this paragraph: Egg production takes place in the ovaries. It occurs in several steps:. Q: Where in the female body does egg production take place? A:

OPTIONS:
- testes
- uterus
- endometrium
- ovaries

Answer: ovaries

Problem: OPTIONS:
- the oscillatory
- tubular gland
- the underlain
- the notochord
Q: Answer the following question given this paragraph: Q: What is a longitudinal, flexible rod located between the digestive tube and the nerve cord? A:
Answer: the notochord

Problem:OPTIONS:
- boiling
- fermentation
- ageing
- rusting

Answer the following question given this paragraph: Oxidation does not necessarily require heating. Iron that is exposed to air and water slowly oxidizes in a process commonly known as rusting. Bleaches contain various compounds such as sodium hypochlorite (NaClO), which release oxygen that oxidizes stains. Hydrogen peroxide (H 2 O 2 ) releases oxygen as it spontaneously decomposes. It acts as a bleach and an antiseptic that kills bacteria by oxidizing them. Q: Oxidation does not necessarily require heating. which is the common and natural method of oxidation? A:
****
A: rusting

Answer the following question given this paragraph: Tides are not unique to Earth but occur in many astronomical systems. The most extreme tides occur where the gravitational force is the strongest and varies most rapidly, such as near black holes (see Figure 6.26). A few likely candidates for black holes have been observed in our galaxy. These have masses greater than the Sun but have diameters only a few kilometers across. The tidal forces near them are so great that they can actually tear matter from a companion star. Q: The tidal forces near what celestial phenomena are so great they can actually tear matter from a companion star? A:
OPTIONS:
- dwarf star
- large holes
- wormholes
- black holes
black holes

Answer the following question given this paragraph: Light may be absorbed by matter. This is called absorption of light. When light is absorbed, it doesn't reflect from or pass through matter. Instead, its energy is transferred to particles of matter, which may increase the temperature of matter. Q: When light is absorbed by a material, what may increase? A:
OPTIONS:
- happiness
- weight
- mass
- its temperature

Answer:
its temperature