Meera sold two cow for Rs. 10000. If she sold one at a loss of 30% and other at profit of 30% and then she found that each cow was sold for the same price, find the percentage of profit or loss in whole transaction.

Alow pressure system is formed when an air mass cools over a cool surface and sinks. true or false

Ascientist is explaining how background cosmic radiation gives evidence of the big bang theory. she says that radiation has been detected everywhere equally as heat in the universe and is increasing. this has been shown to be residual radiation from the big bang. what error did the scientist make?

Which of the timelines above correctly shows the order of historical events on the african continent? a. one (1) b. two (2) c. three (3) d. four (4)