Answer:
Surface tension in water
Friction between tires and pavement
Dissolution of salt in water
Explanation:
Surface tension in water: It is due to the electrostatic force of attraction (cohesive force) between water molecules.
Friction between tires and pavement: It is due to the attractive force between tires and pavement.
Dissolution of salt in water: The ions of 
and 
separate due to the strong attraction of water molecules.
Answer:
its a
Explanation:
scrape - push or pull a hard or sharp implement across (a surface or object) so as to remove dirt or other matter.
1 watt = 1 joule per second = 1 newton meter per second = 1 kg m2 s-3
The number of cycles of a periodic wave per unit time is called the wave's "frequency". The height at which the peaks of the waves reside is the "amplitude".
Elements are pure substances that are composed or made out of only 1 kind of atom.
