Reduce the use of harmful products to the environment. Ways to reduce pollution in your home: 1  Buy biodegradable products. 2  Store all liquid chemicals and waste in spill-proof containers. 3  Eat organic foods that are grown without pesticides. 4  Look out for fertilizer or pesticide free products when you go to the market.educe the use of harmful products to the environment. Ways to reduce pollution in your home: 1  Buy biodegradable products. 2  Store all liquid chemicals and waste in spill-proof containers. 3  Eat organic foods that are grown without pesticides. 4  Look out for fertilizer or pesticide free products when you go to the market.
The four nitrogenous bases found in DNA are; Adenine (A), Thymine (T), Guanine (G) and Cytosine (C).
DNA is made of repeating units called nucleotides. Each nucleotide consists of 3 parts: phosphate, sugar (deoxyribose) and nitrogen bases. The sugar in DNA is deoxyribose, and DNA's full name is Deoxyribonucleic Acid. There are 4 different types of nitrogen bases: adenine, thymine, cytosine, and guanine.