C. Give reasons.
1. The aneroid barometer is portable unlike the Fortin's barometer.
2. Temperature and pressure are inversely related.
3. The Equatorial low pressure belt is a zone of calm air
4. The sub-tropical high pressure belt has been dynamically induced.
5. Tropical hot deserts are located on the western margin of continents in the Torrid zone.
6. The Mediterranean region receives rain in winter and experiences drought in summer.
7. In winter, high pressure exists over the landmasses.
8. The Westerlies are called the roaring sixties in the Southern Hemisphere.
9. Temperate cyclones form over the North Atlantic ocean
10. The Mediterranean region experiences hot dry summers and cold wet winters.
Answers
Answer:
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Explanation:
1 Ans ) Fortins barometer is a modified form of simple barometer, it has me hircury and it is used in laboratories to measure the atmospheric pressure while aneroid barometer has no liquid, it can be carried from one place to another and it directly read the atmospheric pressure.
2 Ans ) When the temperature increases and the air start to rise upwards. creating a low-pressure area, but when the temperature decreases, the air starts to sink downwards creating a high-pressure area on the land surface. So, the temperature and pressure are inversely related to one another.
3Ans) Due to the vertical rays of the sun here, there is intense heating. The air therefore, expands and rises as convection current causing a low pressure to develop here. This low pressure belt is also called as doldrums, because it is a zone of total calm without any breeze.
4 ANS ) Due to coriolis force the air descends at 30-35º latitude thus creates the belt of sub-tropical high pressure. The pressure belt is dynamically induced as it owes its origin to the rotation of the earth and sinking and settling of winds
5) Ans) Most of the worlds deserts are located in the western margins of continents in the subtropics because the prevailing winds in the tropics are tropical easterly winds. The tropical easterly winds become dry by the time they reach the western margins of the continents and so they bring no rainfall
6 ans ) Similar to desert climates, in many Mediterranean climates there is a strong diurnal character to daily temperatures in the warm summer months due to strong heating during the day from sunlight and rapid cooling at night. In winter, the subtropical ridge migrates towards the equator, making rainfall much more likely.
7 ans ) The flow of winds depend upon the pressure difference in the atmosphere.It flow from high to low pressure.In winter the landmasses is much more cooler then the water bodies.So , in winter , high pressure prevails over landmasses.
8 Ans) In the Southern hemisphere, because of the stormy and cloudy conditions, it is usual to refer to the westerlies as the roaring forties, furious fifties, or shrieking sixties according to the varying degrees of latitude.
9 ans) ATLANTIC-ARCTIC FRONT AND CYCLONE: The north Atlantic is much warmer while the Arctic air mass is very cold. When both of them are coming into contact with each other, the strong temperature contrast is created and strong low pressure formation is resulted.
10 ans) The main cause of Mediterranean, or dry summer climate, is the subtropical ridge which extends northwards during the summer and migrates south during the winter due to increasing north-south temperature differences.
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