How does the apparent size of an object depend on its distance from the observer?

The farther away an object from the observer, the smaller it appears.

The father away and object is from the observer to a certain point the smaller it appears then it remains the same in size

The closer an object is to the observer the smaller it appears

The apparent size of an object does not depend on its distance from the observer

The farther away an object from the observer, the smaller it appears.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.