ਰੋਜ਼ਾਨਾ ਪੁਰਾਲੇਖ: ਦਸੰਬਰ 14, 2019

Reducing CO2 greenhouse gas emissions has become the goal of the world, and now many places are discussing to levy CO2 emission tax. Due to the emergence of new fields, and people have to adapt to the existing fields, the…