Answer:
the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
For measuring the temperature of a classroom, the best instrument that one can use is the THERMOMETER. The correct option is D.
Thermometer is the instrument that is specifically designed for the measurement of temperature and there are different types of thermometers for measuring different types of temperature.
Note that, barometer is used for measuring atmospheric pressure, sphygmomanometer is used for measuring blood pressure and atmosphotometer does not exist.
Answer:
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