The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms

I’d say false because the bacteria eats the animal waste and the dead animals and bugs which actually helps clean the world. Plus children play in dirt all the time and if this was true, people would never let their children do so.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.