1.
Which gas is absorbed and which is released by plants during respiration?
A
O₂ absorbed, CO₂ released
B
CO₂ absorbed, O₂ released
C
N₂ absorbed, O₂ released
D
O₂ absorbed, N₂ released
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3 questions · Page 1 of 1
Which gas is absorbed and which is released by plants during respiration?
O₂ absorbed, CO₂ released
CO₂ absorbed, O₂ released
N₂ absorbed, O₂ released
O₂ absorbed, N₂ released
Noble gases are placed in which group of the periodic table?
Group 1
Group 2
Group 17
Group 18
What is the approximate speed of sound in air at 0°C?
232 m/s
331 m/s
440 m/s
3 × 10⁸ m/s