In two or more complete sentences, describe two differences between electromagnetic waves and mechanical waves.

How have the greenhouse gasses increased from the year 2000 to 2018

Which characteristics affect ocean water’s temperature? check all that apply. depth location mass salinity waves

An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o