Involvement of humans in the conservation of environment - class-VIII

Albedo is the measure of reflectivity of a surface. An increase in albedo means more solar radiation is reflected back into space, which results in less energy being absorbed by the Earth, leading to a decrease in the radiative equilibrium temperature.

Good urban planning focuses on the organized and efficient use of land. Rational land use ensures that resources are allocated effectively to meet the needs of the population.

Ecosystems that are maintained or created by human intervention are referred to as man-made or artificial ecosystems. Examples include agricultural fields, gardens, and reservoirs.

Leaded fuel in the form of lead gasoline is banned recently due to its extremely harmful effects on health and pollution caused by it. Combustion of leaded petrol leads to release of lead in the environment causing dangerous effects on the health of all living organisms and environmental pollution. 

Tsai Lun, a Chinese court official, is traditionally credited with the invention of paper during the Han Dynasty. He improved the papermaking process using mulberry bark and other fibers.

Nitrates in drinking water can be converted to nitrites in the body, which interfere with the blood's ability to carry oxygen. Long-term exposure to high levels of nitrates is also associated with an increased risk of gastric cancer.

When marine organisms die, their bodies sink into the sediments at the bottom of the ocean. The carbon from their bodies is released which forms marine sediments that arc the largest store of carbon on earth.

To measure air temperature accurately, instruments must be protected from direct sunlight and heat radiation. A white surface reflects solar radiation, and placement in the shade prevents direct heating.

In a man-subsidized solar-powered ecosystem, human labor and machinery provide the auxiliary energy needed to increase productivity beyond what natural solar energy alone could support.

Public awareness programs educate citizens about environmental issues, which encourages responsible behavior and advocacy for policies that lead to environmental protection.

Vulcanization is a chemical process that adds sulfur to rubber, creating cross-links between polymer chains. This makes the rubber more durable and resistant to temperature fluctuations.

Anagenesis and cladogenesis are the two main ways speciation occurs. One involved the slow transition of one species to another. Cladogenesis involved the separation of a species into two or more groups, with each group then becoming its own separate species.

These pollutants (sulfur dioxide, nitrogen oxides, carbon dioxide, and suspended particulate matter) are major components of air pollution, which directly impacts human respiratory and cardiovascular health.

Humans cause a lot of destruction to the natural world, through deforestation, starting forest fires, farming, and building things. So, when we destroy the environment making it unstable, we allow a new environment where secondary succession begins to take place. It is still slow, and habitats take hundreds of years to rebuild, and often are nothing like the habitat before it.

Clinkers are the stony residues from burnt coal or industrial furnaces. They are commonly used as aggregate in construction materials like concrete and for building road foundations.

Man-subsidized solar-powered ecosystems, such as modern farms, use additional energy inputs to maximize the production of food and fiber compared to natural, unmanaged ecosystems.

Melting of mass ice, glaciers around the world have caused increase in the sea level. The global warming is the main reason for the melting of ice, which are also a big reservoir of fresh water.