Which of the following is not a component of soil?
A) Minerals
B) Dead organic material
C) Living organic material
D) Water
E) All are components of soil
E) All are components of soil
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The features seen in the fossil bird Archaeopteryx
A. show that Archaeopteryx had feathers, but not wings. B. support the hypothesis that birds evolved from dinosaur ancestors. C. show that Archaeopteryx is not a remnant of a living organism, but an unusual rock formation. D. suggest that birds and dinosaurs were designed to fit into different kinds of habitats and then placed there.
Qualitatively, what happens to the hydroxide ion concentration if you decrease the hydronium ion concentration?
A) The concentration of OH- stays the same but the ratio OH-/H3O+ changes. B) The concentration of OH- increases but the ratio stays the same. C) The concentration of OH- increases. D) none of the above
What is soil?
What will be an ideal response?
The most important attribute of Earth is that it is a(n) _______________ system, providing the precise combinations of objects and characteristics to permit the existence of life
Fill in the blank(s) with correct word