Chemical and Physical Changes: Photosynthesis, Burning Plastic, Deforestation

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Photosynthesis (Chemical change)

Photosynthesis is the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce sugar, which cellular respiration converts into ATP, the "fuel" used by all living things. Plants are able to make their own food. Plants produce chlorophyll, a pigment usually found on leaves. It gives the plant its green color while being a key component in making food for itself.

How can the change affect the health, environment or industry? Plants use the energy from sunlight to produce sugar. The energy and oxygen created by plants from photosynthesis keeps life sustainable on Earth. It is one of the many ways our world uses the sun as a source for energy. Scientists for years have been studying the blueprint of photosynthesis in hopes of duplicating its process. They are continually making strides toward unlocking the keys to reproducing this cycle.

How can I maximize the benefits / minimize the harmful effect of the change? Photosynthesis is one of the most important biological processes on Earth. Life is sustainable on Earth because of this process. Agencies may form laws to protect the environment, and recycling reuses materials made from natural resources.

Burning Plastic Bags (Physical Change)
Burning plastic bags has been advocated by some environmental campaigners as a greener alternative to burying them in landfill sites, as it is thought that they are not biodegradable because they have existed for less than a generation, there is not yet a definitive answer to the question of biodegradability.

How can the change affect the health, environment or industry? It can increase the risk of heart disease and cause rashes, nausea, or headaches. It can damage the nervous system, kidney or liver, in the reproductive and development system. It can also affect the central nervous...
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