Explain a hypothetical example in which the oldest rock exposed in a deep canyon is not at the bottom of the canyon
What will be an ideal response?
Because magma moves up from below and is younger than everything it intrudes, it can be lower than rocks it intrudes. When a sill or pluton intrudes into its country rock, it's younger than the rocks that were present on top.
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Most mutations
A. proceed though a set of programmed sequences. B. enable individuals to evolve by becoming genetically different. C. occur from exposure to external agents such as radioactivity. D. cannot be passed along through reproduction cells. E. result from random changes that occur in coded genetic instructions.
As an object cools, the wavelengths of its maximum radiation shorten
Indicate whether the statement is true or false
Which Russian manufacturing region contains Odessa, the principal Black Sea all-weather port?
A) Central Region - Moscow B) Eastern Ukraine Region C) Volga Region D) Kuznetsk Basin E) Urals Region
Aldo Leopold published his thoughts on land-use ethics in A Sand County Almanac.
Answer the following statement true (T) or false (F)