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primary 5 | Science
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hi i need help with my homework. thank u
Date Posted: 4 years ago
Views: 1156
1st, u need to know already the constiuents of air.
Air consists of
1. Nitrogen gas (78%)
2. Oxygen gas (21%)
3. inert gases (0.9%)
4. Carbon dioxide gas (0.1%)
.
Air consists of
1. Nitrogen gas (78%)
2. Oxygen gas (21%)
3. inert gases (0.9%)
4. Carbon dioxide gas (0.1%)
.
And know that
1. our body doesnt make use of Nitrogen gas
2. our body makes use of Oxygen gas
3. our body gives out Carbon dioxide gas
.
1. our body doesnt make use of Nitrogen gas
2. our body makes use of Oxygen gas
3. our body gives out Carbon dioxide gas
.
hence, the ans is
(a)
P: Nitrogen
Q: Carbon dioxide
R is Oxygen gas that is being used by the 40 students when they breathe in air.
.
(a)
P: Nitrogen
Q: Carbon dioxide
R is Oxygen gas that is being used by the 40 students when they breathe in air.
.
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Answer is in the picture!
Date Posted:
4 years ago
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HOPE THIS HELPS:)
Date Posted:
2 years ago
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Date Posted:
2 years ago
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