We must find ways to stop pollution.Waste water must be cleaned before it is poured into the river.People shouldn‘t throw away rubbish here and there.We should pick up the garbage around us.We‘d better plant more trees.I‘m sure if we take care of our environment, our world will be...
Water can be viewed as a renewable resource but to some extent, this resource is non-renewable since accessibility to clean water may be limited. There are various sources of water. These sources include: Rain. Rivers. Lakes and oceans....
Water:Water is the most unusual substance. Nearly all of its physical and chemical properties are unusual compared to other liquids. These unique properties account for why water is the major component of most cells and living tissue.Answer and Explanation: The most important reason for ...
Most hydrometers measure the specific gravity of samples: in simple terms, a hydrometer tells the user if a liquid is denser or less dense than water. It will float higher in a liquid with a greater specific gravity, such as water with sugar dissolved, compared to one with a lower ...
But palm oil is another cause of deforestation. Demand for palm oil has led growers to clear tropical forests and replace them with a monoculture of palm oil plantations [source: WWF]. Urban Sprawl As cities grow larger to accommodate more people, trees are cut down to make more room for ...
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. However, the degree to which it flows depends on its viscosity, which varies according to its molecular size and intermolecular forces. For example, motor oil has a much higher viscosity than water due to its larger molecular structure. Therefore, motor oil flows much more slowly than water...
If an object is more dense than water, it sinks, but if it is less dense than water, it floats. For example, in an oil spill in the ocean, the oil rises to the top because it is less dense than water. A piece of wood and a Styrofoam cup float in water. On the other hand, ...
Dextrose is commonly used as a sweetener for everything from ketchup to breakfast cereal. Dextrose is also used as a sports supplement and blood sugar balancer. Find out more. Dextrose seems to pop up in everything. From processed foods to flavoured water, dextrose is a familiar name on ingr...
It's used in the removal of contaminants, pollutants, and toxins from soil, water, and other environments. Bioremediation is used to clean up oil spills or contaminated groundwater. Bioremediation can be accomplished "in situ," at the site of the contamination or "ex situ," away from the ...