C-05 — Atmosphere

What is the atmosphere?

Which is the most common gas in the air?

Which is the second most common gas in the atmosphere?

Nitrogen and oxygen together make up what percentage of the atmosphere?

All trace gases together make up what percentage of the atmosphere?

Which minor gas is essential for photosynthesis and is also a greenhouse gas?

Up to what percentage of the volume of air can be water vapour?

What is humidity?

Which of the following is a noble gas?

Which of the following is NOT a property of noble gases?

According to Table 1, what is the percentage of nitrogen ($N_2$) in the atmosphere?

According to Table 1, what is the percentage of oxygen ($O_2$) in the atmosphere?

According to Table 1, what is the percentage of argon (Ar) in the atmosphere?

According to Table 1, what is the percentage of carbon dioxide ($CO_2$)?

According to Table 1, what is the percentage of water vapour in the atmosphere?

According to Table 1, what is the percentage of dust and particles in the atmosphere?

Which of the following is NOT a gas component of the atmosphere?

Into how many divisions can the atmosphere be divided vertically?

According to which characteristics is the atmosphere divided into layers?

Which is the correct order of atmospheric layers from the Earth's surface?

Which is the first layer of the atmosphere close to the Earth's surface?

The last terminal of the Troposphere is called—

The Troposphere extends to a height of how many kilometres at the equator?

In the polar region, the Troposphere extends to a height of about—

In the Troposphere, how does temperature change with height?

Generally in every 1,000 metres of height in the Troposphere, temperature decreases by—

How does the velocity of wind change in the Troposphere?

Which layer contains most of the water vapour?

What percentage of the weight of the atmosphere remains in the Troposphere?

Temperature at the Tropopause may be as low as—

Consider the following features of the Troposphere:

The Stratosphere extends from the Tropopause to about—

Why does temperature increase in the Stratosphere?

In the Stratosphere, temperature slowly increases up to—

Which layer is free from clouds and weather phenomena, making it ideal for jet planes?

The end of the Stratosphere is called—

The Stratopause lies between which two layers?

The Mesosphere extends to a height of—

In the Mesosphere, temperature falls as low as—

Which layer has the coldest temperatures in the atmosphere?

Meteors coming from outer space burn down in which layer?

The Thermosphere lies above the Mesosphere up to—

In the Thermosphere, temperature rises considerably, reaching up to—

The process by which gas molecules become electrically charged in the Thermosphere is known as—

Which radiations are absorbed by gas molecules in the Thermosphere causing temperature rise?

The Thermosphere is also known as—

Which layer helps long distance radio communication by reflecting radio waves back to Earth?

The Exosphere extends beyond the Thermosphere up to—

The temperature in the Exosphere ranges from about—

Which gases dominate in the Exosphere?

Why can gas molecules in the Exosphere easily escape into space?

Sound waves cannot travel without—

Weather conditions like rainfall, snowfall, cloud and fog develop in which layer?

The Earth is saved from meteors because they are destroyed in—

If there was no atmosphere, the Earth would be like—

The daily average condition of temperature, pressure, wind, humidity and precipitation for a place is known as—

Climate is the average condition of weather for how many years?

Which of the following is NOT an element of weather and climate?

The Sun's ray falls vertically on—

Generally, atmospheric temperature decreases from—

With increase in altitude, atmospheric temperature—

Although Dinajpur and Shillong are on the same latitude, Shillong is cooler because of—

Which area has an equable climate where summer-winter difference is small?

Climates with very hot summer and very cold winter are known as—

During monsoon, wind blowing from the Bay of Bengal causes heavy rainfall because—

The Warm Gulf Stream raises temperature on which coast?

Which current keeps the eastern coast of North America cool?

The Himalayas obstruct monsoon air and bring heavy rainfall in—

The sub-continent never gets as cold as Europe in winter because—

Which soil becomes hot and cold quickly?

Which type of soil takes longer to warm or cool due to heat conservation?

How does a dense forest influence local air?

Consider the following factors of climate:

What is the largest and constant source of water supply across the world?

In how many forms does water exist?

By which process do trees absorb water from soil?

Water enters the rock layers of the crust through—

Evaporation is more rapid at—

The capacity of air to hold water vapour—

Condensation is the process by which—

Condensation can only occur when the air becomes—

Air can become saturated by—

Droplets of water suspended in the sky are called—

Droplets of water suspended near the surface of the Earth are called—

A dense mist is called—

Tiny drops of water formed when water vapour condenses on the ground or cool surfaces is called—

The coating of ice left when moisture in the air freezes or dew freezes into ice is called—

Fog forms in—

White frost forms when—

The temperature at which air gets saturated is known as—

When is air said to be saturated?

At low temperatures, the quantity of water needed to saturate the air is—

Humidity refers to—

Air which contains no water vapour is called—

Humid air contains how much water vapour?

The amount of water vapour is measured with a—

The total amount of water vapour present in a given volume of air is called—

The ratio between the actual amount of water vapour in air and the maximum amount the air can hold at a given temperature is called—

A form of water that condenses from the atmosphere and falls to Earth's surface by gravity is called—

Rain drops are typically of what diameter?

Drops of which precipitation are less than 0.5 mm in diameter?

Snow is a precipitation composed of—

A mixture of rain and snow is called—

Frozen lumps of ice produced by thunderstorms are called—

Hailstones form inside which type of cloud?

The movement of rain water over the ground is called—

Run off is divided into how many categories?

Which of the following is NOT a category of run off?

Water stored underneath the Earth returns to the air through—

Rainfall is measured by—

Which of the following is NOT a reason for rainfall?

Rainfall caused by surface heating of air leading to rising warm air is called—

Convectional rainfall is most active in—

Rainfall produced when moist air is forced upwards over high ground is called—

In orographic rainfall, the side of the mountain where rain occurs is called—

The dry side of a mountain that receives little rainfall is called—

The Deccan plateau receives less rainfall because it lies in the—

When a warm air mass and a cold air mass meet, the warm air is pushed up creating a 'front'. This causes—

When warm moist air from water bodies rises above cold dry air around a low pressure centre, the resulting rainfall is called—

The movement of air from one place to another is known as—

Air moves from—

Due to Earth's rotation, in the northern hemisphere wind deflects towards the—

How many major pressure belts are there?

Which of the following is NOT a pressure belt?

Planetary winds blow—

How many types of planetary winds are there?

According to Ferrel's Law, in the northern hemisphere the trade wind blows from—

The speed of the north-east trade wind is approximately—

The speed of the south-east trade wind is approximately—

The calm region around 5° north and south of the equator is called—

The Westerlies blow from the subtropical high pressure belt towards the subpolar low pressure belt between—

In the northern hemisphere, the Westerlies blow from—

The Westerlies attain their highest velocity between 40°-47° south latitude. They are called—

The calm belt at 30°-35° north latitude over the Atlantic is known as—

Polar winds blow from—

During the daytime, the cool air from sea blows towards the land. This is known as—

After sunset, air blows from the land towards the sea. This is known as—

The velocity of the sea breeze reaches its maximum in the—

The Arabic word 'monsoon' means—

Monsoons always blow from—

How many branches does the monsoon wind have?

The Arabian Ocean branch of monsoon provides rainfall in—

The Bay of Bengal branch of monsoon provides rainfall in—

A wind that changes its direction with the change of season is known as—

Which of the following is an Andotropic wind?

'Khamsin' is a local wind of—

'Loo' is a local wind of—

'Chinook' originates from—

'Mistral' is a local wind from—

'Bora' blows along the eastern coast of—

'Sirocco' is a local wind of—

'Simoom' is a local wind of—

'Pampero' originates in—

In the last hundred years the average global temperature increased only—

Scientists forecast that by the end of the 21st century the average temperature will increase between—

Which of the following is a greenhouse gas?

Which gases are responsible for global warming?

Which of the following is NOT a cause of increase in greenhouse gases?

The atmosphere acts like the roof of a—

According to scientists, greenhouse effect will be beneficial to which group of countries?

What percentage of the world's area will suffer due to climate change where people live in poverty?

By the middle of the 21st century what percentage of the world's population will face misfortune?

People who migrate to other regions because of climate change are called—

According to UN forecasting, in the next 50 years if sea level rises 3 feet, what percentage of Bangladesh's land surface will go under water?

Approximately how many crore people in Bangladesh will lose their cropping land and home and become climate refugees?

According to IPCC, by which year will river flow drastically reduce?

According to IPCC, by 2050 how many crore people will be affected by water scarcity?

According to ADB, climate change will directly affect more than how many crore people of South Asia?

According to MIT economists, global warming will—

According to research, by the end of this century farming in the world will decrease between—

In 2009 the World Bank pointed out how many risky areas of global warming?

Which of the following is NOT a risky area of global warming pointed out by the World Bank in 2009?

According to the World Bank, how many countries have the possibility of all hazards?

UNFCCC was formed in—

The annual world climate conference of the United Nations is called—

The 2009 world climate conference was held in—

In the 2009 Copenhagen MOU, it was decided to limit the rise of temperature by end of the century within—

In which layer of the atmosphere does argon gas exist?

The characteristics of the stratosphere are that it—

Ananya and her father travelled to Sylhet. From there, they went to see the Jaintia Hills. They observed rain on one side of the hill from a distance, but not on the opposite side. What type of rainfall did Ananya see?

The reason for the lack of rain on the other side of the hill (in Ananya's case) is—

One of the characteristics of monsoon wind is—

What is extreme weather (extreme climate)?

In which layer of the atmosphere do meteors burn up?

Fog generally forms—

What is saturated air?

What is meant by rain shadow?