Renewable resources: Water, air, wildlife, forests,
Nonrenewable: oil, coal, and metals.
B. Crystal size is a function of cooling time. The longer a melt cools the larger the crystals.
Answer:
The intermediate to felsic eruptions may be usually moderately to highly explosive
Explanation:
- Felsic lavas are hot, high in silica and volatiles, and have a high viscosity of fluid matter. They are thick and heavy and resistance movements.
- They thus represent the shielded nature of volcanoes etc. Fluid lava flow, tephra, lapilli, and volcanic bombs.
- Felsic magma is rich in feldspar, and silica as opposed to mafic magma which is rich in magnesium and iron.
- Felsic magma is usually acidic.
- As a result of the high intensity of volcanic eruptions, the lava is sticky and dark in color also it's bulky, etc. An example of Mount Saint Helens that erupted destroying both property and human life.
Answer:
B. greater than
Explanation:
Air pressure decreases as the altitude increases.
Air pressure increases as the altitude decreases.
This means that if the air pressure of Denver, Colorado, at an altitude of about 5,000 feet above sea level, is 840mb, the sea-level pressure reported for Denver will be greater than 840 mbb.
