Marine pollution refers to ocean contamination, especially
with man-made waste or byproducts. This is considered to be a severe problem by
many environmentalists, since it can have detrimental and lasting effects on
the global marine ecosystem. There are several types of marine pollution, each
of which has the potential to harm the delicate balance of life.
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Tuesday, December 5, 2017
Land pollution
Land pollution is the deterioration (destruction) of the
earth’s land surfaces, often directly or indirectly as a result of man’s
activities and their misuse of land resources.
It occurs when waste is not disposed off properly, or can
occur when humans throw chemicals unto the soil in the form of pesticides,
insecticides and fertilizers during agricultural practices. Exploitation of
minerals (mining activities) has also contributed to the destruction of the
earth’s surface.
Water Pollution
The pollution of water is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater), very often by human activities.
Global Warming
Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil fuels or from deforestation, which trap heat that would otherwise escape from Earth. This is a type of greenhouse effect.
Ecology
What is Ecology?
Ecology is the study of the distribution and abundance of
organisms, the interaction between organisms, the interaction between organisms
and their environment, and structure and function of ecosystems.
Environmental Science: An Overview
Environment - The environment means the conditions and
circumstances that surround someone. The air water and space surrounds both
living and non living organisms. This surrounding is called natural
environment.
Electronics
Electronics –
Electronics is the branch of physics and technology that deals with the
emission, behavior, and effects of electrons and with electronic devices.
Most electronic devices use semiconductor components to
perform electron control. The study of semiconductor devices and related
technology is considered a branch of solid state physics, whereas the design
and construction of electronic circuits to solve practical problems come under
electronics engineering. This article focuses on engineering aspects of
electronics.
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