According to Wegener, if the continents moved in the past, what did Earth look like during Pangaea? a very small landmass where only two continents were connected
a giant landmass where only two continents were connected
a very small landmass where all the continents were connected
a giant landmass where all the continents were connected

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

Which characteristics can be used to differentiate star systems? check all that apply.

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided