* they invented the zero and the number system
* they invented the decimal system
* contributed to the valur of pi, alg, trig, calc, etc
many mathematical terms were originated in India
The plural for would also be prey. But in more specific context the plural forms can also be preys, in reference to various types of preys.
Because some types of living things help us treat thousands of diseases. welp im too lazy to reaserch so thats what im only giving you
A. High-rise developments reduce population density
