Overall ageing of a population can be prompted by __?

Which among the following hill ranges of South India are not spread in both Kerala and Tamil Nadu?

Matheran Hill Railway is located in which state of India?

In the planned forestation, Eucalyptus is preferred over many other trees. In this context, consider the following:

1. The Eucalyptus plant grows very fast
2. The Eucalyptus plant can grow on the lands which have lesser water
3. The Eucalyptus Plant is the most common short fiber source for pulpwood to make pulp, making it a cash crop for poor regions

Which among the above is/ are the correct reasons for preferring Eucalyptus?

India’s economy is now considered to be a service sector driven economy. The service sector is often categorized into Market services and non-market services. Which of the following is an example of non-market services?