Global Warming is simply the long-term rise in temperature of the Earth's core, which inevitably would effect the climate systems of the Earth.
The Green House Effect is the natural process that warms the Earths surface.
Explanation:
The Green House Effect--> When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back into space and the rest is absorbed and re-radiated by the greenhouse gases.
The forensic scientist can assume that the number of adenine is always equal to the number of thymine, according to the base pair rule. Adenine matches with the other purine pair, thymine because it is the only thing to which it could have a hydrogen bond with.