If cars and trucks have a negative impact on water quality, then which of the following has the worst effect on water quality? Answer choices: - bacteria - Pesticides - fossil fuels - deforestation - cars and trucks - humans disturb it - flooding - Destroy bridges
cars and trucks

If hormones and neurotransmitters behave in common ways, then neurotransmitters and hormones are what in their function? Answer choices: - cells - organic - inorganic - complex - Vibrates - warm - properties - similar
similar

If condensation can lead to rain, then what can be caused by condensation? Answer choices: - rain - wind - gills - Gases - drought - heat - breeze - gas
rain