Which of the following resources will prove to be of critical value for Southwest Asia and North Africa in the coming decades?
A) water
B) uranium
C) iron ore
D) petroleum
E) coal
A) water
You might also like to view...
The most common mineral in Earth's crust is ________ and the second most common mineral is ________.
A. quartz; feldspar B. olivine; feldspar C. feldspar; quartz D. silicate; carbonate
Which statement best describes the Bormann-Likens controlled experiment in forest valleys in New Hampshire that compared water flowing out of deforested areas to undisturbed areas?
a. The deforested area was greater in volume by 30 to 40% b. The deforested area was less in volume by 30 to 40% c. The deforested area had more soil nutrients dissolved in the water d. The deforested area was less in volume by 30 to 40% and had fewer soil nutrients dissolved in the water e. The deforested area was greater in volume by 30 to 40% and had more soil nutrients dissolved in the water
Which of the following describes the Maunder Minimum?
A. It occurred during the Little Ice Age. B. There were many sunspots. C. It caused a significant change in the eccentricity of Earth's orbit. D. It has been studied by analysis of ice cores in Antarctica.
The H-R diagram is a diagram plotting the stars according to their
A. brightness and luminosity class. B. mass and diameter. C. apparent brightness and temperature. D. spectral type and temperature. E. luminosity and temperature.