1. “Dudhwa Khara Movement”, was an important independence movement in 1942.

2. Some important people who led this movement were Hanuman Singh Budania and Nyola Ram Jaria.

3. The leaders participated in “Bikaner Rajya Praja Parishad” to join the freedom struggle.

4. Dudhwa Khara is a village located in Churu district of Rajasthan.

5. This place has many designed mansions and camel safaris.

The sentence would then read: "The doctor directed the nurse to administer an alternative medicine to the patient."

In this context, "alternative" suggests a different or substitute medicine than the one initially considered.

An amphoteric oxide is a type of oxide that can act as both an acid and a base. This means it can react with both acids and bases, either accepting or donating protons (H⁺ ions) depending on the pH of the solution. Amphoteric oxides exhibit this dual behavior because they have both acidic and basic properties. Aluminum oxide (Al₂O₃) and zinc oxide (ZnO) are examples of common amphoteric oxides.