DNA isolation is a process of purification of DNA from sample using a combination of physical and chemical method while on the other hand, Polymerase chain reaction (PCR<span>) is a technique used in molecular biology to amplify a single copy or a few copies of a piece of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence.</span>
Following two cycles are the most closely related in their role in sustaining life are <span>carbon and oxygen
all</span><span> living thing need carbon because to perform properly. because carbon is found everywhere from the ocean to the sky to rocks. The movement of carbon is known as the carbon cycle
</span><span>Oxygen is very important to living organisms. The oxygen cycle have following steps. The oxygen cycle is interconnected with the carbon cycle because carbon and oxygen are combined in a molecule. The oxygen cycle consists of animals who inhale oxygen from the atmosphere and plants that release oxygen in the atmosphere.</span>
The volcanoes may be dormant or not as active. Only very active volcanoes will be known for erupting a lot.
