Q: Fact: a radiator is a source of heat
Question: In a warm room, it is likely that the source of heat is
OPTIONS:
- a series of metal pipes along a wall
- a small ceiling fan
- a stove which is turned off
- a pile of boxes

A: a series of metal pipes along a wall

Q: Fact: each season occurs once per year
Question: In a decade spring occurs
OPTIONS:
- three times
- twelve times
- ten times
- twice

A: ten times

Q: Fact: warm-weather organisms live in warm climates
Question: Which likely would live in the hottest environment?
OPTIONS:
- bear
- penguin
- moose
- scorpion

A: scorpion

Q: Fact: the mantle is a layer of the Earth
Question: The mantle is a layer of the Earth; what is something other than a layer?
OPTIONS:
- crust
- inner core
- outer core
- lava pit

A:
lava pit