No barriers to trade from nation to nation
<span>1. Groundwater is the water source in the 3rd world countries. Access to drilling and pumping technologies can increase the standard of living for many villages in sub-Saharan africa.
2. Previous industrial activities have impacted groundwater sources to the point that some areas are not suitable for potable water use without extensive remediation efforts
3. Groundwater is an important source of drinking water and irrigation water in areas that are also home to natural gas production. </span>
Answer:t
True, one the earliest human civilizations in the the history settled along the Indus Rives and as a matter of fact, it was called the Indus Valley Civilization and today it is know as India. The indus valley civilization very advanced in technology. They have many things that we recently invented or developed
D, 8100 seconds is equal to 2 hours and 15 minutes