If cigarettes cause lung cancer, then what causes lung cancer? Answer choices: - Pollution - smoking salmon - burning - cigarettes - gasoline - lung tissue - heating liquids - respiration
cigarettes

If landslides are caused by rain, then what are landslides caused by? Answer choices: - mines - deforestation - Movement - Water expanding - waves - ice wedging - heavy rain - mouth of rivers
heavy rain

Q: If using a car requires burning gasoline, then what does using a car require? Answer choices: - Burning gasoline - Burning wood - Electrical energy - a hydraulic system - Driving a boat - Burning tires - Time and energy - hydrogen and oxygen
A: Burning gasoline

Question: If vibrations in air can be used for communication by animals, then vibrations in air can be used for what by animals? Answer choices: - activation energy - communication - Something to move - sleeping - sustenance - Heart rate - food and shelter - tasting
Answer: communication

*Question*
If digestion is important for an animal's survival, then what is something that is important for every animal's survival? Answer choices: - health - salmon - coded genes - Digestion - Energy. - proteins - energy - glycogen
**Answer**
Digestion

(Q).
If plasma cells allow bodies to fight infection, then what do plasma cells allow our bodies to fight? Answer choices: - resistance - parasites - infection - illness - Hostile armies - invasion - hair - Leptospirosis
(A).
infection