6. How do scientists determine when an era begins and when it ends?

Most of the water in the colorado river comes from

Where does an undertow take sand and other particles from the shore?

What has caused freshwater to be such a problem in Australia? a series of droughts improper garbage disposal chemical dumping by companies improper farming techniques

Where is Younde when he first hears someone say "Minu"? A. on the road to Akim B. on the road to Accra C. in the town of Accra D. in a village in Akim

Which three religions developed in East Asia?

What is the Trans-Siberian Railroad? a. the world's longest continuous railroad line b. the major link between Moscow and Europe c. the best way to travel between Russia and Afghanistan d. the shortest railroad in Siberia

What are the 4 different fields of study of Earth's systems?

What are the possibilities for responding to climate change and who has power over the decision-making process

2³+√25*3-4²:√4 it math

What is the name of a city that is located at 39 degrees north and 75 degrees south?