[amp_mcq option1=”nicotine” option2=”chlorophyll” option3=”caffeine” option4=”aspirin” correct=”option3″]
The main active constituent of tea and coffee is caffeine. It is a stimulant that can help to improve alertness and concentration. Caffeine is also found in other plants, such as cocoa beans and kola nuts.
Nicotine is a stimulant that is found in tobacco. It is addictive and can cause a number of health problems, including cancer.
Chlorophyll is a green pigment that is found in plants. It is responsible for photosynthesis, the process by which plants convert sunlight into energy.
Aspirin is a pain reliever and fever reducer. It is not found in tea or coffee.