CBSE Class 9 Answered
Why does not the level of oxygen in the atmosphere decrease?
Asked by Ksakhila97 | 03 May, 2019, 11:54: AM
Expert Answer
All human beings, plants and animals utilize oxygen present in the atmosphere for respiration. Yet, the percentage of oxygen in the atmosphere is constant for many years and does not decrease because the green plants which are capable of photosynthesis take up CO2 from the atmosphere and produce O2 in return. It is this process which keeps the oxygen levels fairly constant.
Answered by Sheetal Kolte | 03 May, 2019, 02:08: PM
Application Videos
Concept Videos
CBSE 9 - Biology
Asked by harjot.arshleen | 02 Feb, 2021, 06:16: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by nagankerimanikreddy | 05 Jan, 2021, 06:18: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by sanjidpkedpt | 02 Jul, 2020, 08:37: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by hardiksurana172 | 09 Jul, 2019, 05:05: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by Ksakhila97 | 03 May, 2019, 11:54: AM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by saradamahapatra9999 | 05 Mar, 2019, 01:25: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by nazlimeerah | 29 Dec, 2018, 02:50: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by hk.sachdev | 30 Oct, 2018, 04:02: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by sajal2402 | 07 Mar, 2018, 09:53: AM
ANSWERED BY EXPERT
