No one will have same DNA
And I think there is nothing else we need to do like creating formulae
And his IQ Level is too high
Ethical norms also serve the aims or goals of research and apply to people who conduct scientific research or other scholarly or creative activities. ... Third, many of the ethical norms help to ensure that researchers can be held accountable to the public.
A. It has mass.
Air is matter, and can't be seen thus not all matter can be seen.
Any liquid or gaseous is matter (water, air, etc.)
Since it can be liquid or gaseous it doesn't have to maintain it's shape and size to be matter.
Cold air usually pushes warm air because cold air has a HIGHER DENSITY
The answer is C because there is no inference in the statement like the others.
