The main disadvantage of coal mining is that it is very hazardous to the health of the people involved in mining, while also having serious negative effects on the environment. Another disadvantage of coal mining is that it is a nonrenewable energy source that will eventually run out, which means that it cannot be depended on as a permanent source of energy.
Thousand of miners die each year as a result of mines collapsing, explosions and a respiratory illness referred to as "black lung". Coal mining often causes flooding and erosion that leads to the destruction of ecosystems vital to humans and animals. Toxins and chemicals from coal mining are often released into the soil, air and water, which hinders the environment further along with the animals and people living in it.Learn More
One advantage of natural gas is that it is environmentally friendly due to low emissions. Natural gas produces less smog than other types, including propane.Full Answer >
If the world's coral reefs die off completely, their loss is likely to create hunger in countries that rely on the reefs to attract and sustain fish, economic decline in places that rely on the allure of reefs for tourism and a gap in the world's biodiversity. Ecologist Roger Bradbury wrote in an opinion piece for the New York Times that collective effects would be devastating.Full Answer >
A savanna or a grassland biome is home to a number of natural resources, including water, livestock and lumber in tropical savannas, and coal, oil, wheat, gas, oats and livestock in temperate savannas. Some grasslands are also found to have mineral deposits, such as iron, mercury, nickel and uranium.Full Answer >
Copper is used in industrial applications, architectural applications, biological applications and electrical applications. It is a ductile metal that has very high electrical and thermal conductivity. As a chemical element, copper is represented by the symbol Cu and the atomic number 29.Full Answer >