Speed in m/s = (distance in km * 1000) / (time in hours * 3600). Here, speed = (60 * 1000) / (1 * 3600) = 16.67 m/s, which rounds to 20 m/s.

The circumference of a circle is given by 2πr. Here, r = 7 cm, so circumference = 2π * 7 = 14π cm.

The Quit India Movement was launched in 1942 as a mass protest demanding an end to British rule in India.

The Indian Independence Act was enacted in 1947, leading to the partition of India and the establishment of two independent dominions.

The Lahore Resolution was passed in 1940, calling for greater autonomy for Muslim-majority regions in India.

The Non-Cooperation Movement aimed to resist British rule through non-violent means and promote self-governance.

The Jallianwala Bagh Massacre occurred in 1919 when British troops fired on a peaceful gathering protesting the Rowlatt Act.

The Civil Disobedience Movement was launched in 1930, prominently featuring the Salt March to Dandi.

Mahatma Gandhi was the key leader associated with the Civil Disobedience Movement, which started in 1930.

C. Rajagopalachari was appointed as the first and last Indian Governor-General of independent India in 1948.

Mahatma Gandhi was the leader of the Indian National Congress during the Quit India Movement in 1942.