Answer the following question given this paragraph: Molecular formulas tell us how many atoms of each element are present in one molecule of a molecular compound. In many cases, the molecular formula is the same as the empirical formula. For example, the molecular formula of methane is CH 4 , and because 1:4 is the smallest whole-number ratio that can be written for this compound, that is also its empirical formula. Sometimes, however, the molecular formula is a simple whole-number multiple of the empirical formula. Acetic acid is an organic acid that gives vinegar its distinctive taste and smell. Its molecular formula is C 2 H 4 O 2 . Glucose is a simple sugar that cells use as their primary source of energy. Its molecular formula is C 6 H 12 O 6 . The structures of both molecules are shown in Figure below . They are very different compounds, yet both have the same empirical formula, CH 2 O. Q: What simple sugar is the cell's primary source of energy? A:
OPTIONS:
- carbon
- nicotine
- chloride
- glucose
glucose

Answer the following question given this paragraph: animals exposed to similar levels of urea. Sharks are cartilaginous fish with a rectal gland to secrete salt and assist in osmoregulation. Q: What do sharks use to secrete salt to assist in osmoregulation? A:
OPTIONS:
- ceramic gland
- bladder gland
- blood gland
- rectal gland

Answer: rectal gland

Question: Answer the following question given this paragraph: Q: What functions as a framework that reinforces the shape of the leaf? A:
OPTIONS:
- the normal structure
- the central structure
- the stylised structure
- the vascular structure
Answer: the vascular structure

input with options: Answer the following question given this paragraph: The area of a rectangular surface is calculated as its length multiplied by its width. Q: The length of a rectangular surface multiplied by its width is equal to what? A:
OPTIONS:
- volume
- height
- circumference
- area
output: area

Q: Answer the following question given this paragraph: Contact metamorphism occurs when hot magma transforms rock that it contacts. Q: What occurs when hot magma transforms rock that it contacts? A:

OPTIONS:
- existence metamorphism
- form metamorphism
- changing metamorphism
- contact metamorphism

A: contact metamorphism

Answer the following question given this paragraph: Q: What is a measure of how hot or cold the air is? A:
OPTIONS:
- precipitation
- variation
- relativity
- temperature
temperature