Question

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Answer 1

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1) The instrument we use to measure wind speed is;


$\boxed{\textbf{(b) \: \: Anemometer}}$


Anemometer is scientifcally defined as a tool or a device typically for finding and measuring wind speeds. There are many Anemometers like, Cup Anemometer containing hemispheres shaped cups or turned around bowls attached to a end of a rod which are symmetrically arranged. Two types of Anemometers are there one is Pressure Anemometers for calculating and measuring the pressure of wind speeds and other is Velocity Anemometer to calculate and measure Velocity and average speeds of winds.


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2) Cyclones are associated with ?


$\boxed{\textbf{(d) \: \: All \: of \: these}}$


Cyclones are associated with strong gusty winds, continuous consistent rain and storm surges. Cyclones are known to increase temperature and make water surfaces warmer than usual for about 60 to 65 metres including a increased temperature of 25 to 27°C and release of water vapour via process of evaporation. Unstable Atmosphere patterns leads to or rises humongous clouds in a vertical cumulus or cotton candy like clouds (child imagination) via the process of condensing of gases leading to formation of moisture in air.

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3) The calm area in the centre of the cyclone is called ?


$\boxed{\textbf{(b) \: \: Eye}}$


The centre are or the calm area of the cyclone is called as the eye of the cyclone. At this region there is almost no presence or little wind which are basically excluding any cloud or rain or no light and clouds are present. Just beyond the ending of eye's range there can be fuming speeds of ridiculous wind speeds which can exceed 250 km/hr!!!. This centre of the cyclone is also the point by which a wind is rotating inside it in a counter-clockwise direction.


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4) The cloud which is normally associated with cloudbursts ?


$\boxed{\textbf{(a) \: \: Cumulonimbus \: Clouds}}$


Cumulonimbus clouds are heavily associated with cloudbursts because of their rapidity and density of moisture and warmness accompanied by repetitive thunderstorms. Basically this one can get easily attached to a cloudburst and claimed as the one to come with it.


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5) Air expands on ?


$\boxed{\textbf{(a) \: \: Heating}}$


Air expands on Heating and contracts on cooling. Basically when a air expands it he hot air molecules are moving much more faster in a given container or open area, they start colliding more rapidly than the cool air which relies on slow particle movement and slower collisions. When a container is heated the air particles get kinetic energy the gas starts to expand only if the container is not rigid. Take a in example of a balloon, if you heat the air inside it, ideally the molecules will go into air fanatic stage bumping each and every molecule causing them to move faster and hit the inner surfaces of balloon more often, yup, causing them to expand. Heating a air packets or containers do cause the phenomenon of expansion making it rise. Whereas cooling will make them contract and cause them to fall.


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6) The unit knot is used to express ?


$\boxed{\textbf{(b) \: \: Wind \: Speed}}$


The unit of knot is designed to give calculations of wind speeds where 1 knot wind is equivalent to 1.15 miles per hour. A stronger wind indicates a stronger and higher wind speed and hence changes the values for knots acquired in miles per hours or for Vectoral Winds at different layers of atmospheres.


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7) We don't feel the air pressure in us.


$\boxed{\textbf{(d) \: \: pressure \: inside \: our \: body \: is \: equal \: to \: the}}$
$\boxed{\textbf{atmospheric \: pressure}}$


Simply said, Our bodies are adjusted to different air pressures outside environemnt and inside our bodies. Equal air pressures of inside is same as the atmospheric pressure given as of outside. When the values of external and internal pressures are fluctuating our constantly changing our bodies are able to adjust and fix them in no time. Take an example of a car moving up the hill or aeroplane taking off from runways or landing there ears are gonna pop, yeah! they pop due to instabilities in external and internal pressures and non-adjusted atmospheric pressure when it increases or decreases. To lower the effect one has to take a deep breath or simply yawn to equalise those pressures and make it stable.


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HOPE THIS HELPS WITH ALL YOUR QUESTIONS AND SPARKS CURIOSITY WITHIN SECONDS!!!!!!!!!