zone of exclusion surrounds

(a) Write chemical reactions taking place in the blast furnace at reduction zone, slag formation zone and combustion zone during the extraction of Iron.

Absence of fish along a river indicates (a) Zone of degradation (b) Zone of active decomposition (c) All zones of pollution (d) Zone of recovery

In which of the zone of lake stratification only heterotrophs are present? (a) Limnetic zone (b) Littoral zone (c) Profundal zone (d) Ecotone zone

Which zone is called the zone of complete combustion?

In a biosphere reserve, limited human activity is permitted in (a) Core zone (b) Buffer zone (c) Manipulation zone (d) Restoration zone

Metallurgy of Fe is carried in Blast furnace. Blast furnace is divided in following zones. a. Combustion zone b. Fusion zone c. Reduction zone d. Preheating zone At 350^(@)C which of the reaction is better reducing agent ?