Fact 1: Some precipitation that falls on land may soak into the ground, becoming groundwater. Fact 2: Wells are drilled into groundwater and springs are fed by groundwater. Given the two facts above, answer the question "Springs can be fed by what?" with the following options: - mechanical waves - vernal equinox - precipitation - rainfall - digestive track - water vapor - aqueous solution - carnivores
precipitation

Fact 1: Shivering occurs when many muscles contract a little bit all at once. Fact 2: Involuntary contractions, shivering, cause the production of heat. Given the two facts above, answer the question "What occurs when many muscles contract a little bit all at once?" with the following options: - the production of cells - preventing heat transfer - To keep their body heat. - the production of heat - Generating heat - recovery time from fatigue - the production of cold - the production of skin
the production of heat

Q: Fact 1: Pesticides can cause pollution. Fact 2: Pesticides for cranberries pollute the water. Given the two facts above, answer the question "Cranberries cause what environmental effect?" with the following options: - salinity - contamination - disease - deforestation - pollution - gene flow - climate - Dehydration
A: pollution

Question: Fact 1: Microorganisms can cause infections. Fact 2: Chlorination uses liquid chlorine bleach to kill microorganisms. Given the two facts above, answer the question "Which chemical added to water prevents illnesses? " with the following options: - Glucose - evaporation - Chlorine. - sugar - Allergies - sweating - energy - hydration
Answer: Chlorine.

*Question*
Fact 1: Abreathing mask is used for keeping harmful particles from entering the respiratory system. Fact 2: All smoke is harmful to the respiratory system. Given the two facts above, answer the question "What keeps smoke out of the respiratory system?" with the following options: - Cooking - Masks - Glasses - skin - Gloves - Hats - Urea - oxygen
**Answer**
Masks

(Question)
Fact 1: Earthworms are important deposit feeders that help form and enrich soil. Fact 2: Earthworms are perhaps the most familiar decomposer. Given the two facts above, answer the question "What can help form and enrich soil?" with the following options: - Most plants - whales - the Sun - decomposers - swamp vegetation - shrub beds - phytoplankton - fossil fuels
(Answer)
decomposers