Question

ANY BRAINLY USER PLZ SOLVE MY QUESTION.
IF YOU DON'T KNOW PLZ DON'T ANSWER IT'S A REQUEST
PLZ IT'S URGENT ​

Answer 1

Cross pollination = 1. In cross pollination pollen grains lands on the stigma of the other flower.

2. agents such as water, wind are required.

3.pollen grains are produced in large number.

self pollination=1. In self pollination pollen grains lands on the stigma of the same flower.

2. flowers do not depend on other agencies.

3. pollen grains are produced in small number.

The answer of first question.

Answer 2

Answer:

. . Answer...

The effective nuclear charge (often symbolized as Zeff or Z*) is the net positive charge experienced by an electron in a multi-electron atom. The term “effective” is used because the shielding effect of negatakakakkakaisively charged electrons prevents higher orbital electrons from experiencing the full nuclear charge.. .. mmm