Air Test - 1

Explanation:

Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%. Gases like carbon dioxide,nitrous oxides, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.

Explanation:

Air temperature is a measure of how hot or cold the air is. It is the most commonly measured weather parameter. More specifically, temperature describes the kinetic energy, or energy of motion, of the gases that make up air. Air temperature is usually measured in Celsius (C) or Fahrenheit (F).

Explanation:

A rain gauge (also known as an udometer, pluviometer, or an ombrometer) is an instrument used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation over a set period of time.

Most standard rain gauges have a wide funnel leading into the cylinder and are calibrated so that one-tenth of an inch of rain measures one inch when it collects inside. The funnel is 10 times the cross-sectional area of the tube. Rainfall as low as .01 inches can be measured with this instrument.

Explanation:

The state of the atmosphere at a particular time and place is weather. Weather is described in terms of variable conditions such as temperature, humidity, wind velocity, precipitation, and barometric pressure.

Explanation:

This is caused by the meteorite rubbing against molecules in the mesosphere. When the friction is great enough, the meteorite burns up.

Explanation:

Jet planes flying in the sky leave a white trail behind them. The moisture from their engines condenses. We see trails of this condensed mositure for some time when there is no air movement , hence their trails appear to be white. 

Explanation:

As Troposphere is nearest to the earth's surface and its height is 13 kms, it contains the air we breathe. 

Explanation:

Above the troposphere, lies the stratosphere. Its height is 50 km. This layer is free from clouds and weather phenomenon. It is ideal for flying aeroplanes. 

Explanation:

Troposphere is the nearest layer to the earth's surface. Its height is 13 km. Hence, all weather phenomena like fog, hailstorm and rainfall occur in this layer. 

Explanation:

Hydrosphere refers to all the waters on the earth's surface, such as lakes and seas, and sometimes including water near the earth's surface, such as clouds. It is not a layer of the atmosphere.