Jajabinta jireed iyo nabaad-guurka

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Natiijada casharka

I can describe the difference between physical weathering and erosion of rock and provide examples of each.

Muuji qoraalka

Weathering is the slow breakdown of rocks on Earth's surface. It happens while the rocks are ‘in place’. Erosion is the process that removes material from where bedrock has been broken down or weathered. Rock can be weathered biologically, chemically or physically. Rock can be eroded by the wind, rain, or by flowing streams and rivers, oceans, ice flows or gravity. Small changes caused by weathering and erosion can have large impacts over time.

Warqadda shaqada

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Imtixaannada

1. Dooro astaanta kiimikada (chemical symbol) ee saxda ah ee curiyaha kaarboon (carbon).
- Jawaabta saxda ah:C
- Cu
- Ca
- Co
2. Dhagaxaantu badanaa waxay ka kooban yihiin isku dhaf macdan (minerals). Waa maxay macdan (mineral)?
- Jawaabta saxda ah:Macdantu waa walax adag oo saafi ah oo si dabiici ah u dhacda.
- Macdantu waxay leedahay qaab dhismeedka kristal (crystalline).
- Macdantu waa walax adag oo aan saafi ahayn oo dabiici ahaan ka jirta.
- Macdantu kuma jiraan kristal.
3. Waa eraygee (keyword) tilmaamaya dhagax leh meelo bannaan oo u dhexeeya jajabkiisa (grains)?
- Jawaabta saxda ah:porous (dhaloole)
- translucent (iftiin dhex mara)
- magma (dhagax dhalaalay)
4. Waa maxay sababta ugu weyn ee go'aamisa cabbirka crystals-ka ee dhagaxyada?
- Jawaabta saxda ah:Heerka isbeddelka laga bilaabo dareere (liquid) una guuraya adke (solid).
- Heerka isbeddelka laga bilaabo adke (solid) una guuraya dareere (liquid).
- Heerka isbeddelka laga bilaabo dareere (liquid) una guuraya gaas (gas).
- Heerka isbeddelka laga bilaabo gaas (gas) una guuraya dareere (liquid).

1. Waa noocee dhagax (rock) ay caawiyaan cimiladu (weathering) iyo nabaad-guurku (erosion) inay sameeyaan?
- Jawaabta saxda ah:Dhagax sedimentary (sedimentary rock)
- Dhagax igneous (igneous rock)
- Dhagax metamorphic (metamorphic rock)
2. Bal maxay sababta biyaha la qaboojiyey (baraf) ay u dabaalanayaan?
- Molekyulka biyaha dareeraha ah waxay leeyihiin tamar dhaqdhaqaaq (kinetic energy) ka badan kan barafka.
- Xoogagga iska caabinta ayaa kala fogeeya molekyulka biyaha.
- Cufnaanta (density) biyaha dareeraha ah waa ka yar tahay tan barafka.
- Jawaabta saxda ah:Cufnaanta barafka waa ka yar tahay tan biyaha dareeraha ah.
3. Waa kuwee kuwan soo socda tusaalooyin ah dhaca nabaad-guurka (erosion)?
- Jawaabta saxda ah:Dhul go' ama dhagax ka daata.
- Koritaanka xididdada ee dillaacyada dhagaxyada.
- Roobka ashitada (acid rain) oo la falgala dhagaxa nuuradda (limestone) ee taallooyinka.
- Mawjadaha hirarka badda oo qaada walxaha dabacsan ee ka fog dhagaxyada xeebta.
- Dabayshu oo qaadday ciidda ka timaadda dhagaxyada xeebta una sii qaadaysa gudaha.
4. Maxay tahay sababta biyaha roobka ay u yihiin kuwo aashito (acid) ah si dabiici ah?
- Waxay leeyihiin pH u dhexeeya 5 iyo 5.6.
- Jawaabta saxda ah:Sababtoo ah biyaha jawiga waxay la falgalaan carbon dioxide (kaarboon laba oksaydh).
- Sababtoo ah biyaha roobka waxay la falgalaan sulfur dioxide (sulfur laba oksaydh) ee jawiga ku jira.
- Sababtoo ah waxaa jawiga ku badan nitrogen (nitrojiin) oo roobku la falgalo.

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