Question: Fact 1: When light enters the eye through the pupil , that light falls on the retina. Fact 2: Receptors are cells in the retina that perceive light. Given the two facts above, what is used to perceieve light inside the pupil?
OPTIONS:
- an electron lens
- It expands
- Receptor Cells
- heat energy
- Energy.
- focusing a lens
- sensory neurons
- observe it
Answer: Receptor Cells

Question: Fact 1: Water vapor condensing in clouds causes rain. Fact 2: When it rains, the rain moistens the soil. Given the two facts above, what does water vapor condensing in the clouds cause?
OPTIONS:
- energy
- Pollution
- Evaporation
- moist soil
- Energy.
- flooding
- kinetic energy
- Heat energy
Answer: moist soil

Question: Fact 1: Coal is used to produce electricity by burning in coal-fire power stations. Fact 2: Electricity is a form of energy. Given the two facts above, what does burning coal in coal-fired power plants produce?
OPTIONS:
- Decibels
- Fireplaces.
- engines
- organisms
- Aloe plants.
- Banana plants.
- Energy.
- warmth
Answer:
Energy.