Fact 1: An incandescent light bulb converts electricity into light by sending electricity through a filament. Fact 2: Incandescence is light from heat energy. Given the two facts above, answer the question "what are light bulbs powered by?" with the following options: - heat - metal - wind - sun - energy - magnetism - gas - cold
heat

Fact 1: Biodiversity increases the productivity and stability of ecosystems. Fact 2: Islands are delicately balanced ecosystems. Given the two facts above, answer the question "Biodiversity increases the what of islands?" with the following options: - water source - stability - Plants growth - our planet - luminescence - environment - human population - allow growth
stability

Q: Fact 1: Lymphocytes are the key cells involved in the immune response. Fact 2: An allergy attack is an immunal response. Given the two facts above, answer the question "Lymphocytes are the key cells involved in what?" with the following options: - dog attacks - major threat to health - survival - Animal survival - cat petting - animal adoption - allergy attacks - critical organs
A: allergy attacks

Question: Fact 1: Heating salt water causes the water to evaporate while the salt remains. Fact 2: An increase in temperature is the result of the flow of heat into the system. Given the two facts above, answer the question "what can be done to salt water to cause water to evaporate while salt remains?" with the following options: - freezing the salt - adding more water - DNA damage and mutations - lowering the temperature - cools it down - exposure to cold - fissures of hot, acidic water - increasing the temperature
Answer: increasing the temperature

*Question*
Fact 1: Insects may live in large colonies and have complex social behaviors. Fact 2: Ants and butterflies are insects. Given the two facts above, answer the question "what may live in large colonies?" with the following options: - bats - density - Birds - snakes - ants - acids - Wasps - bees
**Answer**
ants

Fact 1: Soil is formed by weathering. Fact 2: Most soil is made of weathered rocks. Given the two facts above, answer the question "where does soil come from?" with the following options: - fields - magma - earth - rocks - volcanoes - crust - down - water
rocks