Select the word from the list that best fits the definition. products in which titanium is used a)usefulness, profitability b)lightness, durability c) ilmenite, rutile d) automobiles, aircrafts e) beauty, rarity.

Option D. Automobiles, Aircrafts

Explanation:

Titanium is as strong as steel and very less dense. Because of low density and high melting point it is used in Aircrafts.

Titanium is used as an alloying agent with metals like aluminium and iron also.

Since these alloys are very strong in nature so used to manufacture the parts of automobiles.

Therefore, Option D. will be the answer.

Well they use titanium on automobiles and aircrafts, its light and durable too. So im not sure which would work here. I would go with Option D

satellites are frequently used to make observations of the orbit on earth

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