Question

Q.Insert suitable articles where necessary.
1. _____Newton was _____great scientist.
2.____whole system is corroded with corruption from____top to____bottom.
3.____good and ____evil are to be found in all parts of ____ world.
4.Here is____ inspiring incident____life of Abraham Lincoln.
5.They were____first to reach____airport.​

Answer 1

Answer:

natural cement consist of 1) calcium sulphate 2) calcium aluminate 3) calcium fluoride