Answer:
b less dense and thicker under the continents than under the oceans
Explanation:
- <em>Oceanic crust </em>is found under the ocean, it's about 6 kilometers thick and is destroyed in subduction zones just like the continental crust. It's composed of several layers and it differs from continental crust because it's thinner, denser, younger and with a different chemical composition (olivine, pyroxene, and amphibole).
- <em>Continental crust</em> is thicker (100 kilometers) and less dense than oceanic crust, it resists subduction and its age is 30 times the average of the ocean's age.
Considering this information we can conclude that the correct asnwer is: b less dense and thicker under the continents than under the oceans.
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Answer: industrial emissions and motor vehicles smokestacks fuel combustion
Explanation: All of these are anthropogenic causes of acid rain.
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Answer:
time at 0°=7am
longitude =75°
1°=4minutes
75°=75×4
300/60 (minutes should be converted into hours)
=5 hours
Therefore, time at 75° west is 7+5=12hours or 12 pm
Soil structure is important for plant growth, regulating the movement of air and water, influencing root development and affecting nutrient availability. Good quality soils are friable (crumbly) and have fine aggregates so the soil breaks up easily if you squeeze it.
