Q: Earth goes through regular changes in its position relative to? A:
OPTIONS:
- the moon
- saturn
- mars
- the sun
the sun

Q: In this type of reaction, an element replaces another element in a compound, and the element is in any state of matter but is not an ion? A:
OPTIONS:
- double-replacement reaction
- replication reaction
- polar reaction
- single-replacement reaction

Answer: single-replacement reaction

Question: Q: Mammals belong to which class of vertebrates? A:
OPTIONS:
- agnathas
- chondrichthyes
- placoderms
- endothermic
Answer: endothermic

input with options: Q: What type of cells are the smallest of all human cells? A:
OPTIONS:
- egg
- dna
- meristematic
- sperm
output: sperm

Q: Q: The presence of what stratospheric gas layer decreases the frequency of skin cancer and other damaging effects of ultraviolet radiation? A:

OPTIONS:
- plasma
- cumulonimbus
- smog
- ozone

A: ozone

Q: What type of energy travels through matter in wave form? A:
OPTIONS:
- vibrational
- magnetic
- light
- sound
sound