For the following questions answer them individually
Who among following persons of Indian origin was in news in December 2021 for solving the Kadison-Singer 1959 problem in the field of mathematics?
The Supreme Court ruled in the Kesavananda Bharati case of _________ that the Preamble is a constituent of the Constitution.
In which of the following cities in the United States of America, Yugantar Ashram, the headquarter of Gadar Party, a liberation movement of India, was established?
Which of the following was enacted in 1988 with the aim of ensuring environmental stability and maintenance of ecological balance which is vital for the sustenance of all life forms, human, animal and plant?
PT Usha, who received the prestigious Arjuna Award in 1984 for showing outstanding performance in sport, belongs to which state?