Water molecules have a polarity, which allows them to be electrically attracted to other water molecules and other polar molecules by weak chemical bonds known as view available hint(s) water molecules have a polarity, which allows them to be electrically attracted to other water molecules and other polar molecules by weak chemical bonds known as hydrogen bonds polar covalent bonds van der waals interactions ionic bonds nonpolar covalent bonds

Water molecules have a polarity, which allows them to be electrically attracted to other water molecules and other polar molecules by weak chemical bonds known as hydrogen bond.

The polarity of water (H₂O) molecules arises due to the effective difference of electronegativity between the atoms present in the molecule, i.e. hydrogen and oxygen.  

We know, oxygen is highly electronegative element and hydrogen is electropositive. So there generates partial positive (δ+) charge on hydrogen atom and partial negative charge (δ-) on oxygen atom as shown in the figure (1).  

So in solution this positive charge on hydrogen atom attract the negatively charged ion to itself and form a weak bond or interaction which is called hydrogen bond. There remains hydrogen bond between the water molecules itself as the oxygen atom possess negative charge. The hydrogen bond interaction between the water molecules are shown in figure (2).

when atmosphere interacts with biosphere they focuses on on the sources and sinks of green house gases (ghgs) air pollutants, particular matters, water and energy between the earth's surface and the atmosphere. the biosphere affects the climate. the atmosphere and biosphere are in constant interaction with each other, and all living things rely on gases in the atmosphere for life. organisms such as animals take in oxygen gas form the atmosphere to use in every cell of their body for smooth functioning of daily routine exercises.

they are made of gases.

they have a spherical shape.

they make energy through fusion.