If jet fuels can cause cancer by producing mutations in DNA, then what can cause cancer by producing mutations in DNA? Answer choices: - A drug. - Pesticides - cigarettes - A computer - Toxicity - jet fuel - copper - PDAs
jet fuel

If organic matter being buried under mud changes peat into coal, then what being buried under mud changes peat into coal? Answer choices: - a hydraulic system - space matter - mud shoes - Water expanding - Physical weathering - organic matter - flow of electrons - insignificant matter
organic matter

Q: If abalone have a circulatory system with one or two hearts that pump blood, then what has a circulatory system with one or two hearts that pump blood? Answer choices: - a fish - sharks - abalone - elephants - humans - crocodiles - giraffes - fur seals
A: abalone

Question: If sperm have to swim from men to women reproductive organs to be fertilized, then what happens when sperm swim from men's to women's reproductive organs? Answer choices: - by indirect light - matter vibrating - death - competition - fertile crescent - fertilizer - permineralization - fertilization
Answer: fertilization

*Question*
If acar engine converts a fuel of hydrocarbons into motion through combustion, then acar engine uses what to aid in combustion? Answer choices: - carbon dioxide - electricity - organic molecules - thrust - hydrocarbons - a hydraulic system - kinetic energy - fossil fuels
**Answer**
hydrocarbons

(Q).
If scraping oneself on surfaces or things that have germs may cause infection, then which of the following may cause infection? Answer choices: - influenza - Sterilized objects - chickenpox - eukyarotes - Processed bacteria - Thorough precautions - Germy surfaces - viruses
(A).
Germy surfaces