How would you distinguish a mature soil from an immature soil?
What will be an ideal response?
Immature soils have no B horizon or a very thin B horizon. Older soils have had time to accumulate minerals and develop thick B horizons, as water impacts deeper into the regolith. Also, older soils have proportionately more clay in the B horizons, and less easily weathered material.
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The gradual accumulation of minor changes that bring about a transition from one species to another is a process
called ____________________. Fill in the blank(s) with the appropriate word(s).
Cuba is the largest island in the Caribbean
Indicate whether the statement is true or false
Which is a product of metamorphism?
a. phenocrysts b. dolomite c. amphibolites d. ripple marks e. cross-beds
Which of the following must have occurred in order for the inner planets to grow?
A) explosions in the Sun B) solar wind blasted gases out of the nebula C) temperatures cooled throughout the nebula D) dust was delivered to the nebula by asteroids and meteors