- What are the 3 types of air pollution?
- What is Greenhouse Effect Class 9?
- Why do we fall ill Class 9 notes?
- What causes wind quizlet?
- What causes wind Brainly?
- What is smog Class 9?
- What are the 4 types of winds?
- How Smog is formed?
- How is oxygen maintained in the atmosphere Class 9?
- How is wind caused Class 9?
- What causes a wind?
- What are the 3 types of winds?
- What are the benefits of wind?
- What causes wind Short answer?
- What are the barriers to communication Brainly?
- What is the role of atmosphere Class 9?
- What is smoke and smog?
What are the 3 types of air pollution?
Types of air pollutionparticulate matter.nitrogen dioxide.ozone.sulphur dioxide..
What is Greenhouse Effect Class 9?
The greenhouse effect is the trapping of the sun’s heat in the atmosphere of a planet by gases in that atmosphere. The green house effect happens because of so-called greenhouse gases, which includes carbon dioxide, methane, water vapor & other.
Why do we fall ill Class 9 notes?
→ The various causes of diseases are pathogens (virus, bacteria), lack of nutritious diet/balanced diet and lack of public health services….Study Material and Notes of Ch 13 Why Do We Fall ill Class 9th Science.Infectious AgentsDiseasesWormsIntestinal infections, elephantiasis4 more rows•Aug 24, 2017
What causes wind quizlet?
winds are caused by differences in air pressure. Regions of cold,heavy air have ______air pressure. Regions of warm, light air have_______ air pressure. … Wind is the________movement of air along Earth’s surface.
What causes wind Brainly?
Answer: Gases move from aggressive areas to nonaggressive areas. and also the larger the distinction between the pressures, the quicker the air can move from the high to the low pressure. That rush of air is the wind we experience.
What is smog Class 9?
Smog is a combination of smoke and fog which forms droplets that remain suspended in the air.
What are the 4 types of winds?
The Four Major Wind Systems and Wind Belts: The four major wind systems are the Polar and Tropical Easterlies, the Prevailing Westerlies and the Intertropical Convergence Zone. These are also wind belts. There are three other types of wind belts, also.
How Smog is formed?
Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere. Nitrogen oxides come from car exhaust, coal power plants, and factory emissions. … When sunlight hits these chemicals, they form airborne particles and ground-level ozone—or smog.
How is oxygen maintained in the atmosphere Class 9?
Answer: Oxygen and carbon dioxide remain nearly constant in the atmosphere by the processes of photosynthesis (in plants) and respiration (in animals), respectively. … This released oxygen is consumed by animals by the process of respiration, in which they release carbon dioxide.
How is wind caused Class 9?
Winds are caused due to uneven heating of atmosphere. Air moves from high pressure area 1o a low pressure area. During day time, the air above the land gets heated faster and starts rising. So air from above the sea comes to the low pressure region over land.
What causes a wind?
Wind is the movement of air, caused by the uneven heating of the Earth by the sun and the Earth’s own rotation. Winds range from light breezes to natural hazards such as hurricanes and tornadoes. … Wind is the movement of air caused by the uneven heating of the Earth by the sun.
What are the 3 types of winds?
Types of WindPlanetary winds.Trade winds.The westerlies.Periodic winds. Monsoon winds. Land breeze. Sea breeze. Mountain and valley breeze.Local winds.Nov 7, 2020
What are the benefits of wind?
Advantages of Wind PowerWind power is cost-effective. … Wind creates jobs. … Wind enables U.S. industry growth and U.S. competitiveness. … It’s a clean fuel source. … Wind is a domestic source of energy. … It’s sustainable. … Wind turbines can be built on existing farms or ranches.
What causes wind Short answer?
The wind is caused by differences in atmospheric pressure. When a difference in atmospheric pressure exists, air moves from the higher to the lower pressure area, resulting in winds of various speeds. On a rotating planet, air will also be deflected by the Coriolis effect, except exactly on the equator.
What are the barriers to communication Brainly?
Answer: These include filtering, selective perception, information overload, emotional disconnects, lack of source familiarity or credibility, workplace gossip, semantics, gender differences, differences in meaning between sender and receiver, and biased language. Let’s examine each of these barriers.
What is the role of atmosphere Class 9?
The atmosphere is a protective layer that safeguards the earth from the harsh conditions of the solar system. … During the day, it prevents a sudden increase in the temperature of the earth and prevents the heat to escape to the outer space during the night. It keeps the average temperature of the earth steady.
What is smoke and smog?
The phenomena of smoke and smog is created when tiny particles become concentrated in the air. … These particles are commonly produced as by-products of combustion and can come from vehicle exhausts, industry, outdoor burning and domestic fires (coal and wood).