Which were characteristics of early civilization in the indus valley? choose all answers that are correct. a. indoor plumbing b. stepped pyramids c. standardized system of weights and measures d. embalming of the dead

The answers are A and C.

The Indus Valley Civilization had an amazing system of plumbing which still stuns historians. In Europe, they didn't know plumbing until 18th century.

Also, they were one of the first civilizations on Earth who developed a standardized system of measurements. It was very hard back then, when people doesn't have that accurate tools made from proper materials.

The stepped pyramids were more of a feature of Mesoamerican civilizations.

Also the embalming of the dead was a tradition of Egyptians.

Close to sure the answer is A.

make observations

Explanation:

The first step in the Scientific Method is to make objective observations. These observations are based on specific events that have already happened and can be verified by others as true or false