Question

please help moon plz.............​

Answer 1

across :

1) a greenhouse gas

carbon dioxide

3) a gas necessary for human survival

oxygen

4) 1992 earth summit was help here

Rio de Janeiro, Brazil

5) presence of wetlands increases this gas

Wetlands are usually known for mass carbon storage and sequestration in form of biomass, however they are also a prominent source of GHGs (Greenhouse Gases, e.g. $N_2O$, $CH_4$ etc.). ... Plants in wetland have a high growth rate, so they capture (or sequester) large amounts of carbon dioxide

down :

1) released from ac and fridge

chlorofluorocarbons

2) a safety layer from harmful UV rays

The ozone layer protects us from potentially harmful ultraviolet (UV) radiation. ... Ozone in the stratosphere protects life on Earth from harmful ultraviolet (UV) radiation and is therefore often called 'good' ozone