With reference to Vertical farming, consider the following statements:

1. Instead of horizontally on the ground like traditional farming, vertical farming grows crops in vertical, stacked layers without putting too much impact on land and water resources which are scarce.

2. Vertical farming systems like aeroponics and hydroponics come under the broad umbrella ambit of ‘protected cultivation’.

3. All crops grown via vertical farming methods are usually over 95% water efficient, as compared to crops grown through traditional agricultural practices.

Which of the statements given above are correct?