Fact 1: Freezing causes a solid to form. Fact 2: Ice, on the other hand, is a solid. Given the two facts above, answer the question "What causes ice to form?" with the following options: - liquid - Metling snow - freezing - water - Condensation - burning - melting - heat
freezing

Fact 1: Zinc has a positive impact on the healing of wounds. Fact 2: Red meats are good sources of zinc. Given the two facts above, answer the question "What has a positive impact on the healing of wounds?" with the following options: - red meats - Proteins - ferns - honeybees - Enzymes - dolphins - bushes - exercise
red meats

Q: Fact 1: Fat is used to keep animals warm. Fact 2: Vegetation is required by many animals for warmth and security. Given the two facts above, answer the question "Fat is used to provide warmth and what?" with the following options: - heat energy - energy - security - disease - concern - support - flavor - growth
A: security

Question: Fact 1: Aruler is used for measuring the length of an object. Fact 2: Perimeter is the total length around the object. Given the two facts above, answer the question "How would you measure the perimeter of the outside of an object? " with the following options: - With a scale. - With a ruler. - With a thermometer. - With a hydrometer. - by indirect light - Under 32 degrees - focusing a lens - electron microscope
Answer: With a ruler.

*Question*
Fact 1: Carbon dioxide concentrations in the air have increased over the last decade dramatically. Fact 2: Carbon dioxide, CO2, is usually a harmless gas. Given the two facts above, answer the question "what concentration in the air has increased dramatically over the last decade?" with the following options: - zinc - CO2 - h2o - CFCs - lungs - coal - O2 - CO 2
**Answer**
CO2

*Question*
Fact 1: Amphibians are the first true tetrapods, or vertebrates with four limbs. Fact 2: Frogs are amphibians and ducks are aves. Given the two facts above, answer the question "The first true tetrapods, or vertebrates with four limbs include" with the following options: - Schwinn - frogs - Man - insects - mammals - bats - Birds - feet
**Answer**
frogs