Reactions of blast furnace are given below: 3Fe_2 O_3 + CO rarr 2Fe_3 O_4 + CO_2 CaCO_3 rarr CaO + CO_2 Fe_3 O_4 + CO rarr 3FeO + CO_2 C + CO_2 rarr 2CO FeO + CO rarr Fe + CO_2 CaO + SiO_2 rarr CaSiO_3 a. Which is reducing agent of these equations b.Which equation represent sing production. Which equation is represent reduction of iron.

What type of questions asked from the lesson of magnetic effect of electric current 

Wavelength of green light is

A) 400-450 nm

B) 500-550 nm

C) 660-720 nm

D) 720-800 nm

What is the difference between anaerobic & aerobic respiration? Name some organism that uses the aerobic mode of respiration?

What are the main components of our environment? Explain each of them briefly.

What are examples of hydrotropism plants?