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What type of cloud is a nimbostratus?

Nimbostratus clouds are dark, grey, featureless layers of cloud, thick enough to block out the Sun. Producing persistent rain, these clouds are often associated with frontal systems provided by mid-latitude cyclones. These are probably the least picturesque of all the main cloud types.

What is a Strato nimbus cloud?

Stratus clouds are uniform and flat, producing a gray layer of cloud cover which may be precipitation-free or may cause periods of light precipitation or drizzle. Thick, dense stratus or stratocumulus clouds producing steady rain or snow often are referred to as nimbostratus clouds.

What are nimbostratus clouds composed of?

Nimbostratus clouds might consist entirely of cloud droplets or raindrops, or of ice crystals and snowflakes. However, the composition of nimbus clouds varies greatly depending on temperature and often they may be mixed with supercooled water droplets and ice crystals present at the same layer.

What is the mixture of smoke and fog?

Smog is a form of air pollution. The word “smog” is a combination of the words “smoke” and “fog.” Smog is a mixture of many pollutants, mainly ground level ozone and fine particulate matter.

Does fog improve air quality?

Fog and rain can clean the air effectively. At the same time however, chemicals and compounds that pollute the air can fall with rain to pollute soil and surface waters. Sometimes weather situations change rapidly and naturally these changes reflect on the measured pollution concentrations.

Which disease is caused by smog?

Smog is a serious problem in many cities and continues to harm human health. Ground-level ozone, sulphur dioxide, nitrogen dioxide and carbon monoxide are especially harmful for senior citizens, children, and people with heart and lung conditions such as emphysema, bronchitis, and asthma.

What is smog and its type?

At least two distinct types of smog are recognized: sulfurous smog and photochemical smog. Sulfurous smog, which is also called “London smog,” results from a high concentration of sulfur oxides in the air and is caused by the use of sulfur-bearing fossil fuels, particularly coal.