Which of the following correctly combines the two sentences?

she dusted the table.
he vacuumed the rug.

she dusted the table and he vacuumed the rug.
she dusted the table, he vacuumed the rug.
she dusted the table, and he vacuumed the rug.
when she dusted the table he vacuumed the rug.

The following passage is an example of what type of text structure tornados are caused by unstable air interacting with the wind sheer the resulting formation can cause devastating effects

Which sentence is punctuated correctly?  a.under a microscope; the organisms look a bit like ruffled tennis balls they have armored plates that fit together to make a round shape. b.when the water is disturbed; the organisms respond by glowing this makes swimmers look like floating beams of blue light. c.there is a bay in puerto rico that seems to light up at night; the light comes from tiny organisms in the water. d.the luminescence attracts visitors from around the world people are curious to see; this beautiful otherworldly sight.

Analysis that compares and contrasts the way two myths show one important feature of their culture