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Start learning 50% faster. Sign in nowRice or paddy fields are considered one of the most important sources of methane and nitrous oxide emissions, which contribute considerably to global warming.
The element used in the manufacture of safety matches is —
The pH of a neutral solution is —
The important ore of aluminium is-
The nucleus of an atom consists of-
Milk tastes sour when kept in the open for sometimes due to the formation of-
The acid used in lead storage cells is-
The most reactive among the halogens is-
Bronze is an alloy of-
The chemical name of'Common salt’
The gas usually causing explosions in coal mines is-
