How does the process and rate seafloor spreading affect sea level?
What will be an ideal response?
Answer: When new seafloor material forms, it is warm and has a lower density. As a result, the new, warm seafloor will sit higher on the mantle than old, cold seafloor. If a rift zone spreads quickly, that means there will be more low-density seafloor occupying the ocean basins. This displaces more seawater, causing shallow seas to transgress onto the continents.
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A boulder 50 times heavier than a pebble doesn't fall faster when both are dropped because
A. air resistance during fall is negligible. B. experiments show both accelerate equally. C. gravity acts equally on both the pebble and the boulder. D. it has 50 times greater mass.
On a human time scale, nonbiodegradable wastes (such as toxic lead and arsenic) remain in the water permanently.
Answer the following statement true (T) or false (F)
An ion with a positive charge is known as a cation.
Answer the following statement true (T) or false (F)
What are three of the most important specialty crops grown in the rural parts of the Megalopolis region?
What will be an ideal response?