1. It develops by the union of pollen tube and ovule DESE 2. It contains the female egg cells. UO E VL CITY IN 3. It enlarges to form the fruit. AVRYO ovary 4. The process of transfer of pollen grains from the anther to the pistil POILLANNOIT Polla halion 5. The union of the sperm cell and the egg cell. REETILIAZONIT

convalent bond :

is a chemical bond formed by the sharing of electron between 2 atoms.

it is the direct chemical bond between 2 atoms.

in bond formation atoms are involved here.

electrovalent bond:

is a chemical bond defined as electroststic attraction between 2 atoms.

it is the electrostatic attraction between 2 atoms.

in bond formation, ions are involved here.

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what is the question?

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.