Q: Fact 1: Plants detect and respond to the daily cycle of light and darkness. Fact 2: All daily cycles of the celestial objects are caused by the rotation of the Earth. Given the two facts above, plants detect and respond to?

OPTIONS:
- sub-units of species
- ocean tides
- volcanic activity
- heat and light
- plate shifts
- microorganisms
- the rotation of the Earth
- Temperature changing

A: the rotation of the Earth

Q: Fact 1: Aging is associated with the death of cells. Fact 2: If cell death occurs it is called infarction . Given the two facts above, what is aging associated with?

OPTIONS:
- rapid expansion
- massive damage
- burning coal
- Smoking
- energy usage
- It decreases
- infarction
- smoking tobacco

A: infarction

Q: Fact 1: Decomposition increases amount of organic matter in soil. Fact 2: Bacteria initiate decomposition of plants. Given the two facts above, what would increase the amount of organic matter in soil?

OPTIONS:
- coal
- fossil fuels
- Pesticides
- mussels
- bacteria
- nutrients
- burning
- shrub beds

A: bacteria

Q: Fact 1: Acar engine usually converts gasoline into motion and heat through combustion. Fact 2: Combustion is a type of oxidation reaction. Given the two facts above, how does a car engine usually convert gasoline into motion and heat?

OPTIONS:
- Evaporation
- compound of hydrogen oxygen
- kinetic energy
- antifreeze
- oil changes
- igniting fuel and oxidiser
- using the turn signal
- oxidation reaction

A:
oxidation reaction