Q: Answer the following question given this paragraph: Q: What two types of communication do both humans and birds use primarily? A:

OPTIONS:
- sensual and auditory
- material and auditory
- interaction and auditory
- visual and auditory

A: visual and auditory

input: OPTIONS:
- proteins
- genes
- muscles
- cells Now, answer this question: Answer the following question given this paragraph: Aging is associated with the death of cells. Give two reasons why cells die. Q: Aging is associated with the death of what? A:
A:
output: cells

Answer the following question given this paragraph: The focus of an earthquake is in the ground where the ground breaks. The epicenter is the point at the surface just above the focus. Q: Which part of an earthquake is in the ground where the ground breaks? A:

OPTIONS:
- the epicenter
- the tectonic plate
- the fault
- the focus

Answer: the focus

Problem: OPTIONS:
- phytoflagellate bacteria
- decomposers
- enzymes
- denitrifying bacteria
Q: Answer the following question given this paragraph: Denitrifying bacteria turn nitrate back into gaseous nitrogen. Q: What causes nitrate to go back to its gaseous nitrogen state? A:
Answer: denitrifying bacteria

Problem:OPTIONS:
- helium
- magnesium
- barium
- hydrogen

Answer the following question given this paragraph: Hydrogen has the smallest, lightest atoms of all elements. Pure hydrogen is a colorless, odorless, tasteless gas that is nontoxic but highly flammable. Hydrogen gas exists mainly as diatomic ("two-atom") molecules (H 2 ), as shown in the diagram on the right. Hydrogen is the most abundant element in the universe and the third most abundant element on Earth, occurring mainly in compounds such as water. Q: What has the smallest, lightest atoms of all the elements and is colorless, odorless, tasteless and nontoxic, but highly flammable in its pure state? A:
****
A: hydrogen

Problem:OPTIONS:
- negative
- static
- positive
- neutral

Answer the following question given this paragraph: Atoms, which are always neutral in electric charge, contain electrons as well as protons and neutrons. An electron has an electrical charge of -1. If an atom has three electrons, infer how many protons it has. Q: What charge do atoms carry? A:
****
A:
neutral