Basic Information About The Green Nanotechnology and Its Application Green technology also known as environmental technology, clean technology or greentech is the application of environmental monitoring, green chemistry, environmental science, and various technological processes for environmental protection. Many people think that this technology is a fairly recent phenomenon, but its origins date back to the beginning of the last century — just remember the electric taxis and different types of windmill. Even wave and solar energy are applied more than a century. However, widespread use of green technology has begun in the early s.
Freshwater accounts for only 2.
The remaining unfrozen freshwater is mainly found as groundwaterwith only a small fraction present above ground or in the air. Depending on the local conditions, precipitation may feed rivers and lakes, replenish groundwateror return to the air by evaporation. But many are shrinking as a result of climate change.
The largest river basins include the Amazon and Congo Zaire basins.
River flows can vary greatly from one season to the next and from one climatic region to another. Because lakes store large amounts of water, they can reduce seasonal differences in how much water flows in rivers and streams.
Many of them have been destroyed, but the remaining wetlands can still play an important role in preventing floods and promoting river flows. Generally of high quality, groundwater is being withdrawn mostly to supply drinking water and support farming in dry climates.
The resource is considered renewable as long as groundwater is not withdrawn faster than nature can replenish it, but in many dry regions the groundwater does not renew itself or only very slowly.
Few countries measure the quality of groundwater or the rate at which it is being exploited.
This makes it difficult to manage.The Advantages of Engineering Planet Earth is getting a lot warmer due to the greenhouse effect which heats up the surface of our planet from the presence of gases in our atmosphere.
Green chemistry and engineering is defined as the use of chemistry and engineering for source reduction, the highest tier of the risk management hierarchy as described in the Pollution Prevention Act of More specifically, green chemistry and engineering involves a reduction in or elimination of the use or generation of hazardous materials.
Essay on Environment Changes taking place in our environment in the recent years have become a grave cause of concern for all.
So, to enhance awareness about the problems plaguing the environment, schools and colleges are actively introducing programs to help the cause.
Nov 01, · Every paragraph of your essay should have a main idea, point, or goal that you’re trying to get across.
The topic sentence will identify that main idea. For you to write good topic sentences, you need to know what your paragraphs are going to be about.
An outline will help you do that%(). Introduction: Paragraph 1 In the Introduction you use the same key words that are in the rubric (the question). You can paraphrase them, or .
Genetic engineering is a powerful and potentially very dangerous tool. To alter the sequence of nucleotides of the DNA that code for the structure of a complex living organism, can have extremely ill effects although the potential benefits can be huge.