Item 24 * Which statement is supported by the
chart?
A.
B.
Trains contribute the greatest
to air pollution.
Light and heavy duty
vehicles equally impact air
quality.
Light duty vehicles have the
greatest impact on air
pollution.
Ships account for 25% of air
pollution.
C.
D.

Niye yedi puan mal oglu mal

Answerchemical;

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.