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WHO KNOWS CARD Q U E S T I O N S UNEP
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WHO KNOWS CARD, 1 The sun is a star at the centre of our solar system Nine. planets orbit or revolve around the sun including the. Earth we live in This star is essential to all life on Earth. 2 The sun sends us light warmth and energy, 3 No When we look at the sun in the sky it seems to turn. around us But in reality it is the Earth that revolves. around the sun, 4 The ozone layer protects us from the dangerous UV. radiation contained in the sun s light UV radiation comes. from the sun, 5 Plants grow through a process called photosynthesis. They use water air and sun s light, 6 To make carbohydrates a kind of sugar plants need.
carbon dioxide from the air and hydrogen from water They. release the oxygen left from water molecules in the air. 7 Thanks to the sun our skin can produce Vitamin D. which is good for our growth as vitamin D helps make our. muscles and bones strong,www ozzyozone org,WHO KNOWS CARD. 1 The ozone layer is low in the sky and we can see it. True False,2 In the upper atmosphere ozone is called. Stratospheric ozone Tropospheric ozone,3 What does the ozone layer protect us from. 4 The ozone layer is made of,Oxygen Hydrogen Ozone. 5 How many oxygen atoms are contained in one,ozone molecule.
One Two Three,6 What do the following signs refer to. 7 What is tropospheric ozone,WHO KNOWS CARD, 1 False The ozone layer is high in the sky located in the. stratosphere We cannot see it ozone is an invisible gas. 2 In the upper atmosphere ozone is called stratospheric. ozone because it is located in the stratosphere,15 to 50 km 10 to 30 miles above the Earth. 3 The ozone layer protects us from the dangerous UV. radiation of the sun, 4 The ozone layer is made of ozone that is a kind of. oxygen three oxygen atoms bound together written O3. 5 3 oxygen atoms bound together are needed to form an. ozone molecule, 6 O refers to an oxygen atom O2 refers to an oxygen.
molecule and O3 refers to an ozone molecule,7 Tropospheric ozone is ozone found in the lower. atmosphere at ground level Tropospheric ozone is, dangerous for our health it is a strong pollutant that can. cause shortness of breath lung disease asthma,www ozzyozone org. WHO KNOWS CARD,1 What is the meaning of UV in UV rays. 2 Can we see or feel UV rays, 3 Can UV rays reach us when there are clouds in the sky.
4 Why are UV rays dangerous for us,5 Does UV radiation affect us on the long run. 6 How many categories of UV rays exist,7 UV rays is a synonym for sunlight. True False,WHO KNOWS CARD,1 UV is a short way to say ultraviolet. 2 No We cannot see or feel UV rays UV radiation is a. component of sun s light but it is invisible, 3 Yes UV rays can reach us when there are clouds in the. sky Only dark and rainy clouds can absorb a significant. amount of UV rays, 4 UV rays are dangerous for our health They can hurt.
and penetrate deep inside our skin and our eyes they can. also affect our immune system Exposure to UV radiation. can cause health problems today sunburns eye irritation. and later in life skin cancer cataract, 5 Yes Exposure to UV radiation also affects us on the. long run the bad effects of the sun are cumulative and. they can cause serious health problems in the future. 6 There are 3 categories of UV rays UV A the less strong. that are not filtered by the ozone layer UV B strong and. dangerous because not all filtered by the ozone layer and. UV C extremely strong but all filtered by the ozone layer. 7 False UV rays is not a synonym for sunlight but UV. rays are contained in the sunlight even though we cannot. www ozzyozone org,WHO KNOWS CARD,1 At what time of the day is UV radiation at its. 2 Why is UV radiation higher in summer, The sun is high in the sky and UV rays have a shorter. distance to travel to reach us,There is less ozone in the atmosphere. The sun is particularly busy in summer, 3 What are the surfaces that reflect and increase UV.
radiation several correct answers,Sand Wood Water Stone Snow. 4 When is UV radiation at its highest in our region. Which months,5 Where is the Equator,In the northern part of the Earth. In the southern part of the Earth, Between the northern part and the southern part of the. 6 In October why is the UV Index very high in Rio de. Janeiro and very low in Paris,Because it rains in Paris. Because Rio de Janeiro is in the southern part of the. Earth and Paris is in the northern part of the Earth. Because Rio de Janeiro is in South America and Paris is. 7 Is the UV Index about the weather,WHO KNOWS CARD.
1 UV radiation is at its highest between 10am and 4pm. 2 The sun is high in the sky and UV rays have shorter. distance to travel to reach us in summer or hot seasons. In Summer the sun is more dangerous, 3 The surfaces that reflect and increase UV radiation are. sand water snow,4 Depends on your region, 5 The Equator is the imaginary line drawn around the. planet halfway between the North and South poles It is. therefore between the northern part and the southern part. of the Earth, 6 Rio de Janeiro and Paris have opposite seasons This is. because Rio de Janeiro is in the southern part of the Eart h. and Paris in the nort h e rn part of the Earth October is a cold. season almost winter in Paris while it is hot season in Rio. de Janeiro As UV radiation is higher in summer than winter. it is higher in Rio de Janeiro than in Paris in October. 7 No The UV Index describes the level of UV radiation in. order to tell us how dangerous it is to stay in the sun It. uses all the UV radiation factors that are the time of the. day the time of the year location and even elevation It. also takes into account the weather given that in some. very specific weather conditions UV radiation can be. partly absorbed by dark and rainy clouds,www ozzyozone org. WHO KNOWS CARD,1 Why is the ozone layer depleted,2 Which products contain ozone depleting.
substances several correct answers,Refrigerators Motorbikes Cars Sprays. Ovens Fire extinguishers Pesticides,3 What do we call the main ozone depleting. FFCs CCFs CFCs,4 What other ozone depleting substances do you. know several correct answers,5 When was the first ozone hole discovered. 1985 1998 2005,6 Where are the ozone holes located.
7 What do ozone layer depletion and global warming. have in common,Ozone layer depletion causes global warming. Global warming causes ozone layer depletion,Global warming may delay the ozone layer recovery. WHO KNOWS CARD, 1 The ozone layer is depleted because chemicals such as. CFCs halons and methyl bromide that are dangerous to. ozone molecules are released in the atmosphere, 2 Refrigerators sprays fire extinguishers pesticides and. cars with air conditioning systems can contain ozone. depleting substances,3 The main ozone depleting chemicals are CFCs.
4 The other main ozone depleting substances are halons. and methyl bromide,5 A first ozone hole was discovered in 1985 over. Antarctica Since then it has been forming each year. during spring time when ozone layer depletion is at its. highest Another ozone hole over the Northern pole has. also formed recently, 6 The Southern ozone hole is located over Antarctica It. forms each year during springtime There is also an ozone. hole forming over the Northern pole In addition the ozone. layer is getting thinner and thinner over many other. regions of the world, 7 Global warming may delay the ozone layer recovery. www ozzyozone org,WHO KNOWS CARD, 1 What happens to our skin when it is exposed to UV. 2 What happens to our eyes when they are exposed to. 3 What is the function of the immune system,To fight UV rays.
To fight diseases virus infections,To fight warmth. 4 What are the reasons for children being particularly. at risk several correct answers, They are smaller than adults Their skin is thinner. Their skin is not prepared for the sun yet,They spend more time in the sun than adults. 5 Why is increased UV radiation dangerous for marine. Because fish gets skin diseases Because it kills, plankton that fish eats Because it makes the oceans. 6 What is melanin,A vitamin A muscle A coloured pigment.
7 Which part of the eye is affected by cataract,Pupil Lens Iris. WHO KNOWS CARD, 1 When exposed to UV rays our skin reacts It produces melanin. as a self defence mechanism and consequently gets suntanned. When over exposed to UV radiation our skin is harmed and gets. s u n b u rnt Later in life exposure to UV radiation can lead to serious. diseases such as skin cancer, 2 When exposed to UV rays our eyes get hurt They can be. inflamed and later in life over exposure to UV radiation can lead to. a serious disease called cataract which is the world s leading. cause of blindness, 3 The function of the immune system is to fight diseases viru s. and infections and help us recover from them Exposure to UV. radiation can affect our immune system, 4 Children are particularly at risk when exposed to UV radiation.
because they are in a process of growth and their skin is thinner. They are also more at risk because they spend more time in the. sun than adults 80 of a lifetime exposure to UV radiation occurs. b e f o re the age of 18, 5 Increased UV radiation is dangerous for marine life because it. kills planktons which are the basic food supply for all marine life. 6 Melanin is the coloured pigment our skin contains When. exposed to the sun our skin naturally produces melanin to protect. itself from its dangerous rays Every b o d y s skin contains melanin. but not the same amount dark skin contains more melanin than. light skin However melanin does not protect efficiently against UV. rays and everybody regardless of skin types needs additional. protection, 7 Cataract is a disease that affects the lens of the eye the lens. that lets the light in the eye loses its transparency which can lead. to blindness,www ozzyozone org,WHO KNOWS CARD, 1 What can you do for the ozone layer when you are. Play football Tell my parents about the ozone layer. why it is important to protect it and how they can do so. 2 What are the common products likely to contain ODS. several correct answers,Refrigerators Ovens Cars Motorbikes. Spray cans Fire extinguishers Pesticides,3 Why is it important to handle products with ODS.
Because they are fragile Because if not handled, with care ODS can be released into the air and damage. the ozone layer,4 Products containing ODS are dangerous only when. they are used,True False, 5 Who can participate in the protection of the ozone. The countries The companies E v e ryone, 6 Which agricultural products can be dangerous for. the ozone layer,Fertilizer Pesticides, 7 What is the objective of the Montreal Protocol on.
Substances that Deplete the Ozone Layer,WHO KNOWS CARD. 1 When you are back home you can tell your parents. about the ozone layer why it is important to protect it and. how they can do so They can buy ozone friendly, products and handle used appliances likely to contain. ODS with care, 2 The most common products likely to contain ODS are. refrigerators cars with air conditioning spray cans fire. extinguishers pesticides, 3 It is important to handle products with ODS with care. so that ODS cannot be released into the air and will not. damage the ozone layer Only mechanics certified to work. with ODS should repair or recycle these products, 4 This is false Products that contain ODS are always.
dangerous for the ozone layer be they new or old, 5 Everyone can participate in the protection of the ozone. layer That includes countries and companies but also. 6 Pesticides can be dangerous for the ozone layer when. they contain methyl bromide Methyl bromide is an Ozone. Depleting Substance ODS, 7 The objective of the Montreal Protocol is to gradually. eliminate the consumption and production of ODS in all. www ozzyozone org,WHO KNOWS CARD, 1 At what time of the day is UV radiation the most. From 8am to 10am From 10am to 4pm,From 4pm to 8pm,2 Is UV radiation high or low when your shadow is. shorter than you,3 What are the sun protection rules.
several correct answers,4 What is the best to protect us from UV rays. Caps Hats with a wide brim,5 Do shade trees block 100 of UV rays. 6 What is the safest situation,Under a tree with a hat and protective clothes. In the street in the sun with a short sleeved shirt. On the beach with sunglasses,7 Some animals are active mostly during the night. During the day they sleep in shade under the trees or. the bushes These animals are said to be,Nocturnal Diurnal.


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