In framing farmers use pesticides kill crop pests. But pesticides can have unexpected and unwanted effects on other organisms too. These chemicals harm other species living around the farm. Besides, farmers often use chemical fertilizers to increase the crop productivity but excess use of fertilizers can cause water pollution. Polluted water can kill fish and other aquatic organisms. In this way farming affects biodiversity.
Proteins have structural roles throughout the body. Carbohydrates are the major energy source for cells in the body. I am unsure if lipids or nucleic acids apply.
100 centimeters make up one meter
The answer is D. As the bacteria is antibiotic resistant, it becomes harder to treat.
