Answer to Question 1
Particles larger than 64 millimeters in diameter are called blocks when they are made of hardened lava and bombs when they are ejected as incandescent lava. Because bombs are semimolten upon ejection, they often take on a streamlined shape (like a football) as they hurtle through the air.
Answer to Question 2
A conduit is a path up which magma travels to the surface, a vent is the surface opening at the top of a conduit, and a crater is a bowl-shaped depression at the summit of a volcano.
Deserts differ across the world. (a) Acacia trees between a gravel plain and sand dunes in the Namib
Possible Volcanic Vent
The Number of Children Americans Think Are Ideal
Pyroclastic Igneous Texture
Volcanic Hazards
For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately