Answer:
Convection currents are flowing fluid that is moving because there is a temperature or density difference within the material.
Because particles within a solid are fixed in place, convection currents are seen only in gases and liquids. A temperature difference leads to an energy transfer from an area of higher energy to one of lower energy.
Answer:
A.
Explanation: I saw it online it is gas particles are in constant motion. I hope it is right
The type of bonding present in water (H2O) is hydrogen bonding.