A Competition i think hope it helps
Answer:
Recombinant DNA
Explanation:
Recombinant DNA (or rDNA) is made by combining DNA from two or more sources. In practice, the process often involves combining the DNA of different organisms.
Plants release oxygen through the process of photosynthesis which helps the animals for respiration. They also maintain the balance of oxygen and carbon dioxide in the atmosphere. That is why the forests are called green lungs.
C. the amount of dissolved solid is less in freshwater