Which of the following is true about the origin of the salts in Earth's oceans?

Salts came from fish.

Salts came from icebergs.

Salts came from erosion of land.

Salts came from sand on the beach.

Why is the world blue?

The basis of the U. S. economy has changed from 1) agriculture to manufacturing to service industries 2) agriculture to transportation to communication 3) agriculture to industry to communication 4) agriculture to industry back to agriculture

How are igneous rock classified

A. An example of a sign of a pathogen on a diseased plant is a. soft rot b. a canker on a plant stem c. stunted growth d. mycelium of a pathogen on the plant surface.

Which of the following statements is most accurate? o Human activities have no effect on the physical environment, and the physical environment has no effect on human activities, o Human activities may affect the physical environment, and the

If an Earthquake registered high on the Richter scale and low on the Mercalli scale, then it occurred most likely in which type of location?

What is the name of the largest lake in central america?

Although there are no glacier in florida, how have glaciers affected Florida?

The highest percentage of Australia's forests are A) Acacia B) Rainforest C) Eucalypt

The difference between water levels at low and high tide