Fact 1: Using a gasoline engine requires burning gasoline. Fact 2: And, of course, burning of gasoline produces toxic carbon monoxide. Given the two facts above, answer the question "Toxic carbon monoxide is produced by what?" with the following options: - gasoline engines - Electric generators - electric cars - electricity - solar panels - cigarettes - an engine - ionization
gasoline engines

Fact 1: Viruses are so small that they can be seen only with an electron microscope. Fact 2: On the surface of each microscopic color filter is also a microscopic lens. Given the two facts above, answer the question "Viruses are so small that to see them a scientist would have to use what kind of lens?" with the following options: - Refract it - refraction of light - an electron lens - an image - rays or beams - bending light rays - A computer - flashlights
an electron lens

Q: Fact 1: The looseness of soil increases the amount of oxygen in that soil. Fact 2: Without oxygen in the soil, most plants die. Given the two facts above, answer the question "What helps plants survive?" with the following options: - nutrients - staying warm - Loose pants - hydration - hydrate their cells - Looseness of soil - Looseness of belt - Looseness of lips
A: Looseness of soil

Question: Fact 1: Heating a liquid can be used to identify that liquid 's boiling point. Fact 2: Boiling is the conversion of a liquid to a gas. Given the two facts above, answer the question "What phase does a liquid take when heated sufficiently?" with the following options: - gas - two - dew - cold - liquid metal - more viscous - crystallized - heat
Answer: gas

*Question*
Fact 1: An animal needs to attract a mate to reproduce. Fact 2: Instincts help animals find food, mate, reproduce, and raise their young. Given the two facts above, answer the question "Instincts help animals to do what?" with the following options: - attract a mate - Reproduction - protect them - kill predators - avoid planes - survive - population movement - gather friends
**Answer**
attract a mate

Q: Fact 1: When a hemisphere is tilted towards the sun , that hemisphere receives more direct sunlight. Fact 2: Another named half of the earth is the so-called Pacific hemisphere. Given the two facts above, answer the question "What happens to half of Earth when it tilts towards the Sun ?" with the following options: - it receives more sunlight - it melts - movement of tectonic plates - it receives less sunlight - tectonic plates being pushed together - heat is produced - It used to be covered by water - it receives no sunlight
A: it receives more sunlight