Question 2 : State True or False: In winter the winds blow from the land to the ocean.

Question 3 : State True or False: In summer the winds blow from the land towards the ocean.

Question 4 : If you are in a boat, is it easier to row if there is wind coming from behind you?

Question 5 : State True or False: Due to the uneven heating of the earth, wind flow patterns develop.

Question 6 : Why do chimneys made of steel not require protection from lightning ?

Question 7 : If you are in a boat, is it easier to row if there is wind coming from behind you?

Question 8 : Do you get the feeling that the increased wind speed is accompanied by a reduced air pressure?

Question 9 : Can you guess why the shape of the can gets distorted?

Question 10 : Air moves from region of ____ air pressure to region of _____air pressure.

Question 13 : The main cause of wind movement is uneven_______ on the earth.

Question 17 : How does air move from one region to the other with respect to pressure ?

Question 18 : To expel hot air out of the kitchen. 'A' has an exhaust fan fitted on the windows of her kitchen and 'B' has similar exhaust fan fitted on the wall near the ceiling of her kitchen. Which of the fan will expel the hot air out most effectively ?

Question 19 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbbff59b460d7261ec92.jpg' /> In the above figure, can we infer from the first observation that air expands on heating.

Question 20 : Name the ocean which is mainly responsible to bring rain bearing monsoon winds to Kerala coast in June every year ?

Question 22 : What happens to air pressure when wind speed is increased ?

Question 25 : State True or False: High speed winds are accompanied by reduced air pressure.

Question 27 : A flat in Mumbai with a balcony facing the sea has some clothes hung on a clothes line in the balcony. Towards which direction will the clothes be blown in the afternoon ? Explain.

Question 28 : State True or False: Cyclones are caused by the differences in air pressure and low speed winds.

Question 29 : Suggest the method to find out wind direction at a given place.

Question 32 : What precautions would you take to provide protection against lightning ?

Question 34 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbc1f59b460d7261ec94.jpg' /> In the given above figure, identity the name of natural phenomena.

Question 35 : Low pressure region in the centre of storm is called _____.

Question 36 : Why do you think a steel skyscraper has no need for lightning rods ?

Question 37 : Do you find it difficult to ride a bicycle against the direction of wind?

Question 39 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbc0f59b460d7261ec93.jpg' /> In the above figure, state what happens to the air in the boling tube when it cools down.

Question 40 : What is the instrument used for measuring the speed of wind?

Question 41 : A curtain is hanging at the entrance of a room. A long corridor runs at right angles to the door, that is parallel to the curtain. If a strong wind blows along the corridor, the curtain will:

Question 42 : State True or False: Pressure all around us is exerted by air.

Question 43 : Which of the following places is mostly likely to be affected by a cyclone?

Question 45 : Why is Chandigarh unlikely to be affected by a cyclone ?

Question 47 : State True or False: A cyclone is formed by a very high-pressure system with very high-speed winds revolving round it.

Question 49 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbc6f59b460d7261ec9b.jpg' /> In the above figure, it shows a diagrammatic representation of trees in the afternoon along a sea coast. State on which side is the sea; A or B ? Give reasons for your choice.

Question 51 : Why do the polar winds not move in exact North-South direction ?

Question 52 : Which of the following are not effectivesafety measures to be taken during a cyclone ?

Question 53 : To keep people safe and secure during a cyclone, the government takes certain measures, such as

Question 54 : Which of the following cannot be considered to be a safety measure taken in times of cyclone ?

Question 55 : State whether given statement is True or False<br/>During the night, land cools faster than sea.

Question 56 : "A dark funnel shaped cloud that reachesfrom the sky to the ground." This sentence describes a:

Question 60 : What are the precautions one must take when one is in a cyclone-hit area ?

Question 61 : Which of the following states of India is most likely to be hit by a cyclone?

Question 64 : As an individual caught in a cyclone prone area, which of the following you must not do ?

Question 65 : What role can Advanced Technology play during times of disasters like Cyclones ?

Question 66 : A piece of paper is kept on the table. You have to lift it from the table by blowinghigh-speed air over it. In which direction will you blow the air?<br>

Question 69 : Which of the following is most likely to be a characteristic of the 'eye' of a cyclone?

Question 77 : How do cyclones decrease the fertility of the soil in the coastal areas?

Question 78 : Which of the following is not true about theformation of winds due to uneven heating of land at Equator and Polar regions ?

Question 79 : Why do two balloons come closer when we blow in the spacebetween them ?

Question 80 : Which of the following precautions should be taken when you are staying in a cyclone hit area?

Question 81 : ____ pressure indicates sinking air where clouds cannot form. ____ pressure indicates rising air, which allows clouds to form, bringing rain or snow. Fill in the blank.

Question 82 : State True and False :<br/>During the day, land gets heated faster than water.

Question 84 : Which of the following is the first sign of an approaching cyclone?

Question 87 : Which one of the following place is unlikely to be affected by a cyclone?

Question 89 : In summer, a mild wind is often found on the shore of a calm river. This is due to :<br/>

Question 90 : When a vehicle travels very fast, a region of ______ is created temporarily just behind it.

Question 91 : Sea breeze, a local wind system characterized by a flow from sea to land&#160;

Question 94 : Which of the following statement is correct regarding the eye of the cyclone?

Question 96 : Two pieces of papers are held parallel. Air is blown with a high speed in between them. Which of the following phenomena will be observed?

Question 98 : State True or False :Convection currents are set up giving rise to sea breezes.&#160;<br/>

Question 99 : Which of the following principle shows that if you increase air speed its pressure will decrease?

Question 100 : In human body, the pressure exerted by the cells is ________ the atmospheric pressure.

Question 102 : The sea breeze is conducted due to the creation of high pressure on the

Question 103 : State whether true or false.<br/>The land and sea breezes are based on the fact that the specific heat of vaporisation of steam is very high.

Question 105 : Which of the following plays an important role in the early-warning systems for cyclones?

Question 106 : Assertion: A dam for water reservoir is built thicker at bottom than at the top. Reason: Pressure of water is very large at the bottom.

Question 107 : When the atmospheric pressure of the earth falls suddenly then __________.

Question 108 : To measure atmospheric pressure, Torricelli in $1643$ made an instrument, which is called:<br/>

Question 109 : Pressure can be measured by using Mercuric as well as Aneroid barometer.

Question 110 : The air pressure in the balloon is due to the air filled in it, striking the walls of the balloon.

Question 111 : Assertion: A hydrogen-filled balloon stops rising after it has attained a certain height in the sky. Reason: The atmospheric pressure decreases with height and becomes zero when the maximum height is attained.

Question 113 : Which of the following area is created over land during land breeze?

Question 114 : Which of the following is not the unit of atmosperhic pressure?

Question 116 : Cycle tube when filled with an air, it swells up because of the pressure exerted by the particles of the air in the tube.

Question 118 : Arrange the following steps in the proper order to explain how a sea breeze occurs, near coastal regions.<br>(a) The temperature of land rises rapidly as compared to sea, because the specific heat capacity of land is five times less than that of water.<br>(b) Due to the low pressure over the land mass, the cool air over the sea starts blowing towards the land.<br>(c) The sun shines equally on the land mass and sea, giving equal amount of heat energy to both.<br>(d) The air above the land becomes hot and light, rises up and hence creates the low pressure over the land.

Question 119 : The sea breeze is caused due to the low pressure generated over

Question 120 : The freezer in the refrigerator is generally mounted on the top for proper cooling. Which of the following property of air is demonstrated by this?

Question 122 : <p>Which of the followingplace is most likely to be affectedby a cyclone?</p>

Question 124 : If the air pressure of an area decreases suddenly then our blood vessels swells up and sometimes bursts.