Q: Fact 1: Alight bulb requires electrical energy to produce light. Fact 2: Energy-saving light bulbs are essentially fluorescent light bulbs. Given the two facts above, energy-saving is important when electrical energy is used to produce what? | OPTIONS:
- sound
- a stove
- crops
- light
- oil
- motion
- Heat
- waves
A: light

Q: Fact 1: Female gametophytes produce eggs inside the ovaries of flowers. Fact 2: Fruits develop from the ovary of the flower. Given the two facts above, where part of a plant does the fruit come from? | OPTIONS:
- food
- seeds
- trees
- bushes
- pollen
- flower
- A kernel
- potatoes
A: flower

Q: Fact 1: Most invertebrates have a more complex nervous system. Fact 2: Jellyfish and insects are invertebrates. Given the two facts above, what has a more complex nervous system? | OPTIONS:
- elephants
- phytoplankton
- animals
- insects
- viruses
- crocodiles
- tortoises
- bacteria
A: insects

Q: Fact 1: Evaporation of sweat uses energy, and the energy comes from body heat. Fact 2: When sweat is evaporated into the air, it provides additional cooling. Given the two facts above, energy that comes from body heat can help with ? | OPTIONS:
- recovery
- commuting
- movement
- cooling
- strength
- stay warm
- health
- motion
A: cooling