An ivory scale in Harappan context was found at –

In the Harappan Civilization, traces of canals have been found at

Which colour was commonly used in the Harappan Pottery?

At which among the following Harappan sites are fire altars found?

Which among the following Harappan site terracotta of 'plough' was found?

Which among the following materials was used in making the Harappan seals?