What are the three basic decisions that an economic system must make?

Scientists can what? choose all that apply. A. can predict volcanic eruptions as long as adequate resources are available. B. cannot predict volcanic eruptions or earthquakes in enough time to save any lives. C.

Some farmers near an ocean must irrigate their soybean crops to harvest any successful growth. Desperate and without a source of fresh water, one of them decides to irrigate his field with seawater.

Are volcanic island arcs caused by ocean-continent convergent boundaries, ocean-ocean convergent boundaries, or both?

Where does warm water accumulate in the Pacific Ocean during El Niño? the east the south the north the west

The intersection of the perpendicular rays below has formed which of the following?

What type of map would you use to study population growth?

1. define the concept development 2. why can literacy be used as an indicator of development?

What word suggest a negative connotation of being thin

Which of these events leaves small prices of rocks in new places?

Most of the helium in the universe is believed to be produced in