Oxygen.
Oxygen was fatal when organisms started using photosynthesis, this event was known as the Great Oxidation Event.
The magnetic vehicles will move closer to each other because the magnetic force will pull the vehicles together.
Answer: choice B. Climate
Explanation:
Climate is the relative temperature of a region over time.
An individual's behavior can be influenced sociologically, psychologically and
physiologically by the arrangement of an interior environment. Dependent on functionality, co-working space etc of the room, a person may require more or less privacy which is related directly to productivity, social balance, personal happiness and other problematic or positive behavioral encounters.
The general definition of a gene is some heredity that is passed on from a parent to an offspring. Scientifically speaking, the transfer involves a sequence of nucleotides that forms part of the chromosome. This sequence of nucleotides is a DNA.
Thus, the answer would be
A. a segment of DNA