Explain how lithosphere, biosphere, hydrosphere and atmosphere are interconnected.

The lithosphere comprises all the hard, cold, and solid rock of the surface of the planet (crust), the hot liquid rock close to the center of the planet, the hot semi-solid rock that lies below the crust, and the solid iron core of the planet.  

The hydrosphere comprises all the planet's liquid, solid, and gaseous water. The biosphere comprises all the living species of the planet, and the atmosphere comprises all the air of the planet.  

All these spheres are closely associated. For example, various birds (biosphere) fly through the air (atmosphere), while water (hydrosphere) generally flows through the soil (lithosphere).  

The spheres are so closely associate with each other that a modification in one sphere generally leads to a modification in one or more of the other spheres. Such modifications, which occurs within an ecosystem are considered as events.  

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.