MULTIPLE CHOICE: 6.Some adult insects are unable to swim but are able to walk on top of water. What characteristic of water enables these insects to walk on top of water?

a. pH b. solvent properties c. atomic bonds d. surface tension

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.