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The answer is sexual activity.
I hope this helps!
I'm pretty sure the answer is C because you need to let the child learn on his/her own.
Answer:
Failure of the respiratory system would cause failure of the circulatory system because the respiratory system helps you breath and with you not breathing it would cause the circulatory system to fail because breathing makes the blood flow through the circulatory system.
Explanation:
Answer: b. gasoline
Explanation:
The leaking underground storage tanks have been found as a threat to the groundwater. The gas stations, industries and other entities use underground storage tanks to hold toxic materials like oil, gasoline underground to prevent their exposure to the air as these are flammable and volatile. Other dangerous substances include heavy metals, toluene and benzene. The leakage of these materials can contaminate the groundwater supplies.
