In studying the origin of the universe, one of the primary unanswered questions is what type of elements formed first approximately how long ago it occurred how long it took the earth to form what came before the big bang

In studying the origin of the universe, one of the primary unanswered questions is what came before the big bang.

Explanation:

The big bang theory can be described as a theory which scientists have proposed to explain how the universe came into existence. This theory predicts how the extremely hot temperatures and dense atmosphere might have given rise to the stars and the galaxies.

Scientists have no idea what happened before the big bang theory. Some scientists predict that there might be another universe which collapsed before the big bang theory. While other scientists claim that there was nothing before the big bang.

What came before the big bang.

Explanation:

The Big Bang Theory is a model for the origin of the universe. The model describes the change that the universe has gone through from its conception. It argues that the universe expanded from a high-density and high-temperature state. However, one of the questions that remain unanswered is what came before the Big Bang, as we do not have the knowledge yet to determine whether this event was primordial.

what subject is this

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.