As an infant, the ability to produce antibodies is limited.

The act of violating or misuse of what is regarded as sacred i.e, like the sanctity of the church is called Sacrilege.

The one word substitution for Of outstanding significance is monumental which has a meaning of great in importance, in size or any such characteristic.

The South African leg-spinner has become the 1st-ever spinner to bowl the 1st over in a World Cup. It took place in the World Cup 2019 against England team at Oval in London where he bowled Bairstow for a DUCK.

Lala Lajpat Rai, popularly known as Punjab Kesari was an Indian Freedom Fighter who gave the safety valve theory for Indian National Congress in 1916 in a daily news paper paper 'Young India'. 

It was said that the INC was started by Viceroy Lord Dufferin with the help of an ex Civil Services member as a 'Safety Valve' against the popular discontent.

Jharia, a town in the sate Jharkand in India is famous for coal mines and resources. It plays an important role in the economy and development of the state.

The one word substitute for Very pleasing to eat is  Palatable. It means of food or drink that is very tasty, appetizing or pleasant to eat or drink.