Which of the following masses is/are equivalent to seventy billion metric tons?
1) 7.0x10^10 metric tons
2) 0.070 trillion metric tons 3) 70,000 million metric tons
4) all of them are equal to seventy billion metric tons

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

Which of the following describes a situation where competition between producers exists

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe