
Aineringed ökosüsteemis
Authored by Kadri K
Biology
9th - 12th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 2 pts
Mis on aineringe?
Aine liikumine ühest organismist teise.
Aine liikumine elus- ja eluta looduse vahel.
Tootjad toodavad eluta loodusest saadud anorgaanilisest ainest orgaanilist ainet. Seda kasutavad tarbijad. Lõpuks muudavad lagundajad orgaanilise aine tagasi anorgaaniliseks. Nii jõuab aine tagasi eluta loodusesse.
Tootjad saavad eluta loodusest orgaanilist ainet. Orgaaniline aine liigub läbi tarbijate lagundajateni. Lagundajate vahendusel liigub orgaaniline aine muutumatul kujul tagasi eluta loodusesse.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuidas mõjutavad inimesed globaalset süsinikuringet?
Toodavad juurde uut süsinikku.
Paiskavad tagasi ringlusesse sealt väljunud süsiniku.
Vähendavad atmosfääri jõudva süsiniku hulka.
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Mis mõiste? Organismide kogumass kindlal ajahetkel mingil alal või ökosüsteemis.
4.
MULTIPLE SELECT QUESTION
45 sec • 3 pts
Kuidas seob inimene molekulaarset lämmastikku? Märgi õiged väited.
Valmistab õhulämmastikust väetist.
Kasvatab lämmastikku siduvaid põllukultuure.
Kasutab sisepõlemismootoreid.
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Mis element? See element moodustab enamuse elusolendite biomassist.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis element? Seda elementi ei leidu gaasilises vormis, seega ei kuulu element atmosfääri koostisesse.
süsinik
lämmastik
fosfor
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis element? Sisepõlemismootorite töö tulemusena satub seda elementi veekogudesse tohutul hulgal.
süsinik
lämmastik
fosfor
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