Questions

Neza-Chalco-Itza is one of Mexico City's barrios(slums). Most of its approximately four million inhabitants live there illegally. Mexico City's slums have been growing for more than 100 years, after the railways allowed new industry to beign in the city. 

Galvanised iron sheets have a coating of zinc.

The Qutub Minar in New Delhi was lit up in blue as part of World Autism Day on 2 April.

INCORRECTLY is the only English word which is always spelled incorrectly.

Internal Rate of Return is that rate of Return at which the net present value is equal to Zero or it is the Rate which equates the present value of the cash inflows to the cash outflows.

NPV = Cash Inflow - Cash outflow

NPV = Zero

A living community and its environment is what an ecosystem is.

The study of trees is called Dendrology.