Strict liability under the rule in *Rylands v. Fletcher* requires the defendant to have made a 'non-natural use' of land. Which of the following would qualify as 'natural use' rather than 'non-natural use'?

1. In *Rylands v. Fletcher* itself, water collected in a reservoir in such large quantity was held to be **non-natural use**. 2. The ICSI text gives examples of **'natural use'** of land — things not essentially dangerous which it is not unusual for a person to have on his own land: 3. (i) **water-pipe installations in buildings**, (ii) **working of mines and minerals on land**, (iii) **lighting of fire in a fire-place of a house**, and (iv) **necessary wiring for supplying electric light**. 4. Industrial-scale reservoirs, explosive storage and inflammable-gas storage (options A, B, D) are textbook **non-natural** uses that fall within the *Rylands* rule (or *M.C. Mehta* absolute liability). _Source: ICSI CS Executive — Lesson 6, '(i) Damage due to Natural Use of the Land', p. 139._