Tens of thousands of these mcdonald's drinking glasses were recalled in 1977 because they contained: a. polycyclic aromatic hydrocarbons in the glass o b. pesticides residues on the glass c. lead containing pigments used in the design d. americium, a radioactive component of glass

Uranium is a mineral which is used to generate electricity. predict and explain the long term effect on the environment of obtaining and using uranium as a source of energy.

Describe how ocean currents can affect a moving object ❕❕❕

Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.