7. carbon dioxide is a colorless odorless gas why is it considered a pollutant? a. it gets into natural waters and kills fish b. it promotes algal growths in natural waters c. it causes respiratory illness in humans d. it increases the warming of the atmosphere

What came first egg or chicken? and is tomato a vegetable or a fruit?

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point