input with options: Fact 1: Producing thrust causes something to move. Fact 2: All rockets generate thrust by igniting an mixture of fuel and 'oxidiser'. Given the two facts above, what causes a rocket to move?
OPTIONS:
- flow of electrons
- Electrical energy
- expansion into a vacuum
- magma
- kinetic energy
- igniting fuel and oxidiser
- pulsars
- heat is produced
output: igniting fuel and oxidiser

input with options: Fact 1: Information in an organism 's chromosomes cause genetic traits to be passed down to that organism 's offspring. Fact 2: DNA is a carrier of information of inheritance. Given the two facts above, what causes genetic traits to be passed down to that organism 's offspring?
OPTIONS:
- RNA
- rice
- SNPs
- DNA
- gene
- sex
- the opposite sex
- water
output: DNA

input with options: Fact 1: Acactus stem is used for storing water. Fact 2: Cactuses store water, serving as their own reservoirs and surviving long droughts. Given the two facts above, how does a cactus survive droughts?
OPTIONS:
- It becomes dormant
- It helps them survive
- roots and shoots
- high humidity
- circulatory systems
- roots to grow
- Holding water in the stem
- dormant state
output: Holding water in the stem

input with options: Fact 1: Skin is used for protecting the body from harmful substances. Fact 2: Pollution is the release of harmful substances into the environment. Given the two facts above, what does the skin protect against?
OPTIONS:
- smallpox
- A virus
- disease
- sun's heat
- cancer
- leukemia
- Pollution
- heat energy
output:
Pollution