Water's ionization property creates positive and negative ions, which are essential for chemical reactions.
Answer:
Can u translate this to english pls
Explanation:
Compounds from different organisms are being used widely bu humans for their benefits. Some of the compounds are used as drugs. For example, penicillin is used as a drug or antibiotic. There are many plants which provides humans with other types of medicines and herbal remedies. There are other compounds which are used for cancer treatment. For example, taxol is a compound obtained from trees which are being used as anticancer drugs.
I would say, C. Because an controlled variable is an experimental element which is constant and unchanged throughout the course of the investigation.