Q: Fact 1: Acavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone. Fact 2: Limestone caves are formed when acids attack and dissolve the calcite in limestone. Given the two facts above, what are caverns formed from? | OPTIONS:
- storing water
- streams
- fossil fuels
- limestone
- streams.
- Rocks
- crust
- mines
A: limestone

Q: Fact 1: Amutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring. Fact 2: Child' is ambiguous between 'offspring' and 'immature offspring'. Given the two facts above, a mutation in parent's sex cells can cause new traits to appear in a what? | OPTIONS:
- concern
- pet
- parent
- germs
- haploid
- gametes
- DNA
- child
A: child

Q: Fact 1: Scraping oneself on a contaminated object may cause infection. Fact 2: Any tear, scrape, or cut in the skin is considered a wound. Given the two facts above, a wound caused by a contaminated object may become:? | OPTIONS:
- threatened
- infected
- hospital
- material
- bacteria
- limb ripped off
- imbalanced
- homogenous
A: infected

Q: Fact 1: Heterotrophs are living things that cannot make their own food. Fact 2: Mammals depend on the vegetation for food and shelter. Given the two facts above, mammals are ? | OPTIONS:
- animal transport
- Heterotrophs
- parasites
- fur and fat
- animals
- pathogens
- producers
- more abundant
A: Heterotrophs