How did hooked work contribute to the cell theory?

The correct answer is - he coined the term cell and help in developing the microscope with Leeuwenhoek.

Explanation:

Robert hook was the first who use the term the cell for the compartments he saw in the microscope in the dead oak bark which is nothing but the remaining part of the oak bark cell.

He also helped in developing the microscope with Leewenhoek which is used and helped in developing the cell theory later.

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.

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint