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Faahfaahinta casharka

Natiijada casharka

I am able to name the main gases in the atmosphere and describe the test and some uses for each one.

Muuji qoraalka
Earth’s atmosphere is mostly within 7 to 15 km of its surface. Earth's atmosphere is 78% N₂ and 21% O₂, with very small amounts of other gases and particles of liquids and solids. Greenhouse gases keep Earth’s temperature warm enought for human life. The test for oxygen gas is that it relights a glowing splint. The test for carbon dioxide gas is that it forms a white precipitate that turns limewater milky.

Warqadda shaqada

weli lama diyaarin

Imtixaannada

  1. 1. Waa maxay qaacidada molecular-ka ee saxda ah ee carbon dioxide?

    • CO
    • CO2
    • C₂O
    • Jawaabta saxda ah:CO₂

  2. 2. Dariyada (processes) ee soo socota kee ayaa u baahan carbon dioxide?

    • gubasho (combustion)
    • neefsasho (respiration)
    • Jawaabta saxda ah:sawirka cuntada (photosynthesis)
    • dhexdhexaadin (neutralisation)

  3. 3. Waa eraygee muhiim ah oo loo isticmaalo in lagu sharaxo lakabka gaasaska ee ku wareegsan meeraha (planet)?

    • meel bannaan (space)
    • Jawaabta saxda ah:atmosfeer (atmosphere)
    • dhagaxyo (rocks)
    • faaruq (vacuum)

  4. 4. Waa imisa boqolkiiba (percentage) gaaska oksijiinta (oxygen gas) ee jawiga dhulka?

    • 78%
    • Jawaabta saxda ah:21%
    • 1%
    • 0.04%

  1. 1. Gasgee ayaa ka kooban qiyaastii 78% jawiga dhulka (atmosphere)?

    • Jawaabta saxda ah:nitrogen (nitrojiin)
    • oxygen (oksijiin)
    • argon (arjoon)
    • carbon dioxide (kaarboon laba oksijiin)
    • methane (meetaan)

  2. 2. Intee ayay tahay boqolkiiba (percentage) ee ogsijiinta (oxygen) ku jirta jawiga dhulka?

    • 0.04%
    • 1%
    • Jawaabta saxda ah:21%
    • 78%
    • 100%

  3. 3. Waa kuwee kuwan soo socda ee loo isticmaalo kaarboon laba-ogsaydh (carbon dioxide)?

    • Jawaabta saxda ah:in photosynthesis ee dhirta
    • in dab-demiyeyaasha
    • in neefsashada dhirta iyo xayawaanka
    • in buuxinta qaar ka mid ah baakadaha cuntada si loo kordhiyo waqtiga kaydinta
    • in ka dhiga cabitaannada xumbo leh

  4. 4. Gaas kee ayaa sameyn doona xabxab cad (white precipitate) marka lagu mariyo biyo nuurad ah (limewater), isagoo biyaha nuuradda ka dhigi doona caano?

    • nitrogen
    • oxygen
    • argon
    • Jawaabta saxda ah:carbon dioxide

Waxa ardaydu arkaan

Tan waa isla casharka sida ardaygu u arko. Waxaad qayb kasta u dirsan kartaa ardayda.

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