Confirmation bias "is caused by other people's ideas and opinions about a subject". (Answer D).
It is a common problem and occurs when a person seeks out evidence to support their preconceived opinions or views on a particular topic. This causes the 'bias' in the term 'confirmation bias' as the person is seeking to reinforce their preexisting view, rather than accept a more probable outcome. A classic example would be climate change skeptics seeking out source material that is anti-climate change in spite of overwhelming international consensus over the core aspects of climate change from the global scientific community. A person who seeks out and depends for their opinion on a very small component of the available evidence and chooses to ignore the mainstream literature is someone who has succumbed to confirmation bias.
Momentum = mass x velocity so if velocity is kept same and mass is increased then momentum will increase.
In Rutherford's gold foil experiment, some of the positive particles would pass through the foil and some would bounce off. This led to a new theory that all of the positive subatomic particles were in the center of the atom instead of evenly spread throughout.
DNA database was established in 1995