The accompanying photo shows a footprint on the moon left by an Apollo astronaut in material popularly called lunar soil. Does this material satisfy the definition we use for soil on earth? Why or why not.

Q: How might a reduction in species diversity affect the other three components of biodiversity

A: The three components of biodiversity are: Ecosystem Diversity, Species Diversity and genetic diversi...

Q: How many years might one subduction zone operate? One volcano? How many years might pass between eru...

A: Most subduction zones will operate normally until the high density lithospheric plate is entirely su...

Q: How do sunspots occur on the sun? And why are they in pairs?

A:   Sunspots are caused by highly intense magnetic fields on the Sun. The intense magnetic fields arou...

Q: Assume we are looking at a river/creek valley that contains ancient meanders. These ancient meanders...

A: The meandering of the river occurs in the old stage. In the meander, erosion occurs in the outer cur...

Q: How do the ages vary along a line of subduction-zone volcanoes compared to a line of hot-spot volcan...

A: Hot spot volcanoes are characterized by an age progression depending on the distance from the source...

Q: What changes in temperature, pressure, and water content cause hot rock to melt? What are the two mo...

A: The earth surface contains various types of rocks such as sedimentary rocks, igneous rocks, and meta...

Q: Explore Exploration Activity The compositional zones of Earth's interior are the crust, mantle, oute...

A: The figure show temperature increases with depth in the earth. The temperature gradient knowledge co...

Q: As seen from Earth, the Sun has an apparent magnitude of about                 26.7. What is the app...

A: The absolute magnitude (M), apparent magnitude (m), and the distance (d; in lightyears) between star...

Q: What is the average speed, in centimeters/year has the pacific plate been moving for the past 5 mill...

A:   The location of hotspot remains fixed relative to plate motion and also Hawaiian big island is loc...

Q: Identify the locations of the following features on the map: continental shelf continental slope sp...

A:   Based on the color elevation interpretation from the question and also Google earth image of the s...

Q: List the beneficial aspects of volcanoes and volcanism.

A: Soil formed from volcanic rock and ash provides fertile land for farming. Thus, higher crop yield fo...

Q: Place the letters labeling rock layers, unconformities, faults and intrusions in order from youngest...

A: The rock layers, unconformities, faults and intrusions can be arranged in order from youngest to old...