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Photosynthesis (Chemical change) Essay

Description:

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.

http://www.ehow.com/about_5171907_effects-photosynthesis.html#ixzz2HNgzrqG3

Burning Plastic Bags (Physical Change)
Description:

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 system, causing headaches, fatigue, weakness, and depression. Burning plastic bags releases toxins into the atmosphere, creating pollution. Not only these people who are burning the trash are exposed to these pollutants, but also their neighbors, children and families.

How can I maximize the benefits / minimize the harmful effect of the change?

Separate plastic waste from other waste. Do not burn any plastics in your yard or house. Reduce wastes by buying products that can be reused or refilled. We can also recycle papers, glass and metals.

http://www.wecf.eu/cms/download/2004-2005/homeburning_plastics.pdf

Deforestation (Physical Change)

Description:

Deforestation refers to the cutting, clearing, and removal of rainforest or related ecosystems into less bio-diverse ecosystems such as pasture, cropland, or plantations.

How can the change affect the health, environment or industry? Trees are necessary for rain. Tree cutting can lead to flood and deforestation, a transformation of an area from forest to terrain with little vegetation. Plants create oxygen and absorb greenhouse gases. The destruction of trees may, therefore, encourage global warming. Cutting trees can result in the loss of habitat for animal species, which can harm ecosystems.

How can I maximize the benefits / minimize the harmful effect of the change?

We should tell the citizens about the actual side effects of cutting down trees. To find the alternative means other than the use of tree for usual activities like cooking, building and for furniture; Instead we are to use plastic and iron material for furniture and building purposes and also the use of gases for cooking. We can also create strict laws against cutting of trees and improper use of tree products.

http://kids.mongabay.com/lesson_plans/lisa_algee/deforestation.html


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