The raw materials used to produce pig iron in a blast furnace are iron ore, coke, sinter, and limestone. Iron ores are mainly iron oxides and include magnetite, hematite, limonite, and many other rocks. The iron content of these ores ranges from 70% down to 20% or less.
The answer & explanation for this question is given in the attachment below.
Answer:
Its false
Explanation:
And this is because, the level of competition will matter when you are doing the mental activity, and in general when you are doing the physical activity then the level of competition never matters. And note that you are doing an activity which is always of one level in case of physical activity, and no sort of games where the competition does matter, and you need to beat the record all the time. You are in this situation challenged physically though always at one level which is fixed and known in advance, and how much exertion your body can withstand, and that is a competition in itself. However, no other competition or level is a factor in this scenario. Though in case of mental activity the requirement can vary at times, and hence requiring the varied level of competition.
It depends on personal tastes and what it's applied on.
For example: I like Blue. I think Blue is cool! But, I also think red is cool, on a sports car. I think it would have to be Red, but thats what I think. The same with orange. Green for a T-Shirt is cool as well!
Remember that if you want to find out what color someone likes, just ask them. Generally though, Red is considered to be cool for most things.
