Because ice is LESS dense than liquid water, oceans and lakes don’t FREEZE solid.
1. Concentrations are elevated by hot sunny days: photochemical smog.
A photochemical smog is a type of smog that occurs when sunlight in the atmosphere reacts with chemicals produced by the combustion of fossil fuels. This smog consists a pollutant and it is very common in large and densely populated cities. In hot sunny days, the ultraviolet light from the sun is at high levels, therefore, the photochemical smog is elevated.
2. The correct answer is stratospheric ozone depletion.
The Earth's stratosphere (which is one of the atmosphere's layers) has a layer with high ozone concentration, called ozone layer. The ozone layer absorbs most of the ultraviolet radiation that the Earth receives from the Sun. The ozone depletion is a term referring to the phenomenon of the gradual thinning of the ozone layer.
3. The correct answer is again ozone depletion.
The thinning of the ozone layer (as described above) is mainly caused by chemicals produced by the industry and other human activities. These chemicals belong to the category of ozone-depleting substances (ODS) and include halocarbon refrigerants, solvents and propellants. They are released from the surface of the Earth and transferred through the wind up to the stratosphere. When in the stratosphere, they undergo photolysis and release their halogen atoms. This, in turn, causes the breakdown of ozone into oxygen.
4. Acid deposition forms from emissions of sulfur dioxide.
Acid deposition is a term referring to the phenomena of acid rain, acid fog and acid mist. It is an environmental problem caused by the pollutants and gases from fossil fuel combustion and other human activities. In particular, power stations, house fires, car exhausts and melting processes emit sulfur dioxide which reacts with water molecules in the atmosphere and converses into sulfuric acid. This reaction lowers the pH of the rain, fog and mist and causes problems to the organisms and the infrastructure on Earth's surface.
5. Montreal protocol aimed to reduce emissions that cause the ozone depletion.
Montreal protocol is a protocol of the Vienna convention for the protection of the ozone layer and constitutes an international treaty. It controls the production, emission and consumption of the substances responsible for the ozone depletion (ODSs) on a global level. The implementation of this protocol resulted in a slow recovery of the ozone layer.
6. The correct answer is photochemical smog.
As described in question 1, the photochemical smog constitutes a mixture of several air pollutants. It is a product of the chemical reaction between the sunlight, nitrogen oxides and volatile organic compounds. The photochemical smog is a mixture of over 100 different chemicals, including nitrogen oxides, peroxyacetyl nitrate, tropospheric ozone and aldehydes.
7. Acid deposition leaches plant nutrients from the soil.
Acid deposition can cause soil acidification, a term referring to the pH of the soil becoming acidic. It has been observed that plants in areas where acid deposition is more common, grow more slowly or are unable to grow and die. This happens because the acid deposition releases toxic substances in the soil, such as aluminium. In addition, it happens because acid deposition removes minerals and nutrients from the soil and kills some of the microorganisms necessary for the plants to grow.
8. The correct answer is photochemical smog.
A temperature inversion is the reversal of the normal behaviour of the temperature above the surface of the Earth, meaning that temperature does not decrease with height as it is supposed to. These inversion effects reduce the atmospheric mixing and, in turn, reduce the dispersal of pollutants in the atmosphere. Therefore, this causes an increase in the concentration of pollutants and an increase in the production of photochemical smog.
Delirium is Ames' condition. Delirium is an acute condition that is reversible. It is common in the post operative period.<span />
Answer:
Significance Of Trees
Trees are the most fundamental component of life. Human existence can't be envisioned without trees. It is the main regular wellspring of oxygen supply. The indication of something going on under the surface is just in the world earth in view of its oxygen which comes from trees. Trees help to keep a sound equilibrium among every one of the regular assets like soil, air, and water. Once more, it protects the earth from the ruinous nursery impact. It assimilates our wiped out carbon dioxide and gives sufficient oxygen to adjust the climate.
Trees shield the climate from contamination by decreasing the measure of barometrical gas. In addition, it gives us heavenly organic products, blossoms, wood, leaves, and shade, which assume an extremely valuable part for humanity. Wood can be utilized to make various kinds of seats, tables, furniture, which are our every day necessities. Trees shield human existence from cataclysmic events. In the circumstance of floods and stream disintegration, the tree holds the dirt with its root and forestalls soil disintegration. Be that as it may, these days countless trees are chopped down to meet the every day needs of individuals.
Deforestation might be the reason for less precipitation which might prompt dry spell. For our endurance and Trees are the favors given by God, which has been forestalling human existence question for a very long time. To protect nature clean and trees assume the most fundamental part. It gives us food, shade, oxygen, and wood. We should establish heaps of trees and deal with those trees. An obligatory tree establishing project ought to be figured.
It can help us no more about how to prevent global warming