Question

what primary evidence did wegener use to support his theory of continental drift?
only the matching coastlines of different continents
mathematical calculations of tectonic plate movement
multiple pieces of evidence including matching fossils, coastlines, and rock layers
the presence of similar rock formations in asia
question 9
1 pts
what is the primary external source of energy that drives the earths systems?
solar energy from the sun
through tectonic plate movements
by creating atmospheric pressure
nuclear fusion within the earths core
question 10
1 pts
how does the hydrosphere interact with the cryosphere?
by creating atmospheric pressure
through volcanic eruptions
through tectonic plate movements
by providing water that forms ice

Explanation:

• For the first question, Wegener used multiple lines of evidence for continental - drift including matching fossils across continents, similar rock layers, and the fit of continental coastlines.
• For the second question, the Sun's solar energy is the main external energy source for Earth's systems, powering processes like the water cycle, weather, and photosynthesis.
• For the third question, the hydrosphere (water) can freeze to form ice in the cryosphere (frozen water part of Earth), and ice from the cryosphere can melt back into the hydrosphere.

Answer:

• Question 1: Multiple pieces of evidence including matching fossils, coastlines, and rock layers
• Question 2: Solar energy from the Sun
• Question 3: By providing water that forms ice