Which among the following is a stable isotope of C? 1. 12C 2. 13C 3. 14C
In the figure shown, ABCD is a parallelogram. It is divided into triangles in such a way that ∠BEC=∠BCE. Which one of the following is correct?
Only 2
1, 2, 3
Only 1
Only 3
Q20. With reference to Black buck consider the following statements:
1. IUCN: Near Threatened
2. They are the “state animal” of Haryana and Punjab
3. They are found only in India
Which f the above statement/s is/are incorrect?