put (√) or ( x ) :Heavy rainfall is one of the causes of flooding,  Write what phrase indicates: rise in the water level above the river bank and flows onto the land around the river, Write what phrase indicates: very strong wind blow up sand and dust from extremely dry area, correct the following statement:The convection current moves horizontally, Complete the following:The regions near to equator are................. temperature, .Complete the following The warm moist air has.............density, choose the correct answer: Sand loses its heat..........(fast-slow), What happens when:Sand and water at day after the exposed to sun light, What happens when:Water fall on Earth's surface from clouds, put (√) or ( x ) :One of the characteristics of desert soil is high fertility soil, Write what phrase indicates:the science of studying and predicting weather, Write what phrase indicates:-the amount of force that air effects on the surrounding environment, 13.correct the following statement:-The process of condensation is changing of liquid water into water vapor, 14, Complete the following:-...........................is considered from reservoirs on Earth's surface, 15.Complete the following:-The force of..............is basic factor for water cycle, 16. choose the correct answer:-The main factor affects wind is.................(sun-earth), 17. Give reason for the following:-Snow forms on the top of mountain while water remains liquid at the bottom, 18. Give reason for the following:-When hot air loses its heat it descended down, 19. What happens when:-The amount of water vapor in the air increase, 20. What happens when:-Rising higher in relation to atmospheric pressure and temperature, put (√) or (x) The convection current moves horizontally, 22. Write what phrase indicates:-A device that is used in measuring the atmospheric pressure , 23.Write what phrase indicates:-A process by which plants get rid of excess water in the form of water vapor through stomata, 24. correct the following statement:-Air pressure at the top of mountain is more than air pressure the bottom of the mountain, 25. Complete the following:-One of the characteristics of desert soil is...................fertility soil, 26. Complete the following:-the air descends downward, 27.choose the correct answer:-Evaporation occurs as results of.......................energy(loss-gain), 28.Give reason for the following:-Desert formation, 29.Give reason for the following:-The spinning of the paper spiral over a turned on lamp, 30. What happens when:-Very dry wind blows over area of the land, 31. What happens when:-Accumulation of dust over solar panels, 32. Write what the following statements indicate: A location on Earth where water is stored, including oceans, seas, lakes, rivers,soil, etc.(.........................), 33. Write what the following statements indicate: The transformation of water vapor into liquid as a result of a decrease in temperature.(.........................) , 34. Write what the following statements indicate:The movement that occurs when hotter, less dense molecules rise and cooler,denser molecules sink..(.........................), 35.Write what the following statements indicate:The science of studying and predicting weather..(.........................), 36. Write what the following statements indicate:The force exerted by air on the surrounding environment, or the weight of a column of air above an area..(.........................) , 37. Choose the correct answer:A. ............ is used to determine wind speed.(anemometer-thermometer, 38. Choose the correct answer:-.......... is the amount of water vapor present in the air.(Humidity-Atmospheric pressure), 39. Choose the correct answer:- The density of air molecules increases at the ........... of a mountain.(top-bottom), 40. Choose the correct answer: One of the devices used to carry measuring instruments is the................(weather balloons-rain gauge ), 41. Choose the correct answer:..............affects weather and climate.(Mountains-Bodies of water-All of the previous), Choose the correct answer:..............can be described as very fast.(Air density-Wind), Choose the correct answer:The state of the atmosphere over a short period of time is......(climate -weather ), Choose the correct answer:A........ can write a report on the weather.(meteorologist-astronaut), Choose the correct answer:Sandstorms occur in.............regions.(desert-coastal), Choose the correct answer:All of the following are damages caused by floods except........(a- disruption of the economy -b- damage to buildings -c-drowning of livestock -d- moderation of the weather ) , Choose the correct answer:Drought occurs as a result of...........(a- Moderation of temperature -b- High temperature -c- Low temperature -d- a and c together), Choose the correct answer:.................is considered the first step in the process of weather forecasting and understanding how it changes. (Data collection - Data analysis), 49. Answer the following questions:How does the amount of energy emitted from the sun affect the rate of transpiration in plant leaves?, 50. Answer the following questions:- What are the stages of weather study?.

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