Question

*From the given examples of sets which one is of singleton set?*

1️⃣ set of natural satellites of Earth
2️⃣ set of tall mountains on the Earth
3️⃣ set of deep oceans on the Earth
4️⃣ set of big continent on the earth.​

Answer 1

Answer:

option 4 is correct

Answer 2

Answer:

option 1

set of all natural satellite s on earth

only one natural satellite which is moon