What was the significance of the clean air act of 1970?

Who was the leader of the black nationalists in the 1920s?

What major land feature is located at 0* and 20* e? a sahara desert b kalahara desert c congo basin d the alps

When gandhi reached the arabian sea at the end of the salt march, he picked up raw salt from the water and made a declaration: “with this, i am shaking the foundations of the british empire.” how do you think this quotation is symbolic of gandhi’s works and philosophy?