Answer:
Here are the options to complete the question
A. plants
B. animals
C. inorganic compounds
D. genetic engineering
The CORRECT ANSWER IS D.
D. genetic engineering
Explanation:
Drugs can be produced or obtained by extracting the essential component needed from a plant source, animal source and inorganic compounds.
Genetic engineering is a synthetic source of drug production, needed to solve or make ready drugs with the aid of advanced technology/process.
Counting the yearly layers can date them. The oxygen in the water molecules also holds a key to past climate. Scientists are able to use the oxygen atoms in the glacial ice as a proxy for air temperature above the glacier.
Answer:
Though the earth is 75% water, less than 1.2% is actually drinkable.
Explanation:
