The presence of ozone in the troposphere:

The relative contribution of $O_3$,$N_2O$,and $H_2O$ to global warming is in the ratio of ......

For your agricultural field or garden,you have developed a compost-producing pit. Discuss the process in the light of bad odour,flies,and recycling of wastes for good produce.

What concentration of carboxyhaemoglobin complex in the human body reduces the oxygen-carrying capacity of haemoglobin?

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R:$
Assertion $A:$ Polluted water may have a value of $BOD$ of the order of $17 \, ppm$.
Reason $R:$ $BOD$ is a measure of oxygen required to oxidise both the biodegradable and non-biodegradable organic material in water.
In the light of the above statements,choose the most appropriate answer from the options given below.

The higher concentration of which gas in air can cause stiffness of flower buds?