Impure iron from the blast furnace is converted to steel as shown. oxygen
impure molten iron
Which statement about the process is correct?
A Acidic oxides are added to remove alkaline impurities.
B Coke is added as a reducing agent.
C Oxygen is blown in to oxidise the impure iron.
D The steel produced contains less carbon than the impure iron.

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.