scientific theory is an explanation of some aspect of the natural world that can, in accordance with the scientific method, be repeatedly tested, using a predefined protocol of observations and experiments.
Answer:
Harappa and the city of Mohenjo-Daro were the greatest achievements of the Indus valley civilization. These cities are well known for their impressive, organized and regular layout. They have well laid our plumbing and drainage system, including indoor toilets.
The correct answer is Philadelphia
she is 54 year old ...............................
The answer is b and hpe this helps