Which of the following is the most polluting energy source oil natural gas biomass coal?
Which of the following is the most polluting energy source oil natural gas biomass coal?
The coal is the most polluting as when we burn the coal it cause acid rain, smog and the air pollution which is toxic and also harmful for the environment. The coal plants typically produced 3.5 millions ton of the carbon dioxide (CO2) gas per year and then it lead to global warming.
Which non-renewable natural resources are most at risk of depletion?
The six natural resources most drained by our 7 billion people
- Water. Freshwater only makes 2.5% of the total volume of the world’s water, which is about 35 million km3.
- Oil. The fear of reaching peak oil continues to haunt the oil industry.
- Natural gas.
- Phosphorus.
- Coal.
- Rare earth elements.
What are disadvantages of cotton?
Disadvantages of Cotton
- Expensive.
- Natural fibers wear down faster.
- Holds moisture longer (can be an advantage in hot weather)
- Prone to shrinking.
What are the negatives of cotton?
Disadvantages
- Not a very strong fabric.
- Absorbent – heavy and takes a long time to dry, also stains easily.
- Poor elasticity so creases badly.
- Shrinks badly.
- Highly flammable and burns quickly.
- Attacked by mildew if left damp.
What was the biggest problem with growing cotton?
Other social and environmental issues with cotton Cotton cultivation causes soil degradation and erosion as well as loss of forest area and other habitat. The use of child labor and slavery is common in the industry. Cotton production is responsible for the emission of 220 million tons of CO2 annually.
Is cotton difficult to grow?
Cotton is a perennial plant but mostly grown as an annual as it cannot withstand frost. Cotton needs a lot of sunshine, warm conditions and 4-5 months of frost-free temperatures to mature and produce cotton. 1. Plant cotton seeds in moist soil, in groups of three seeds, 1 inch deep and 6 inches apart.
Is there a cotton shortage?
IT IS now generally admitted that the world is confronted with a serious shortage of American cotton. It has taken three successive years of failure to convince the cotton trade that the conditions under which the American crop was produced in the past have changed radically and permanently.
Does cotton use a lot of water?
Cotton’s average irrigation requirement is 6-7 megalitres per hectare. Australia’s cotton industry is one of the most water efficient industries in the world. Water-use productivity by Australian cotton growers improved by 48% since 1992.
Is cotton immune to pests?
Cotton, corn and soybean have been genetically engineered to produce pest-killing proteins from the widespread soil bacterium Bacillus thuringiensis, or Bt. These Bt proteins are considered environmentally friendly because they are not toxic to people and wildlife.