Question

the picture below shows a group of water striders walking on the surface of a pond. when an insect lands or falls into the water, the water molecules vibrate. the water striders use the vibrating vibrations to find its prey. what property of water enables this bug to stay on the surface of the pond and not sink?
hydrogen bonds provide cohesion of the water molecules, enabling the bugs to stay afloat
the hydrogen atoms in the water bond to the bugs legs, keeping the bugs on the surface.
waters high specific heat enhances the vibrations causing the bugs to float
the optimal ph of the pond water keeps the water calm so that the bugs dont sink

Explanation:

Water has a property called surface tension due to hydrogen - bonding between water molecules. This allows water striders to stay on the water surface as the cohesive forces among water molecules create a sort of 'skin' on the surface.

Answer:

Hydrogen bonds provide cohesion of the water molecules, enabling the bugs to stay afloat.