Suggest a few measures for controlling carbon dioxide levels in the atmosphere.

(N/A) To control the levels of carbon dioxide $(CO_2)$ in the atmosphere,the following measures can be adopted:
$(a)$ Reduce the consumption of fossil fuels like petrol and diesel in automobiles to lower emissions.
$(b)$ Use cleaner fuels such as $CNG$ (Compressed Natural Gas) or electric vehicles to minimize carbon output.
$(c)$ Instead of burning organic waste or litter,convert it into manure through composting.
$(d)$ Implement industrial smoke treatment processes,such as scrubbers,to remove harmful gases before they are discharged into the atmosphere.
$(e)$ Increase forest cover by planting more trees,as they act as carbon sinks by absorbing $CO_2$ during photosynthesis.