Question

1. which of the following layers is made of molten iron and nickel?

a) inner core
b) outer core
c) crust
d) continental crust

1. wegener’s theory has never been accepted/

a) true
b) false

1. which of the following is a false statement about alfred wegener

a) found evidence that land masses were moving
b) froze to death in greenland
c) wrote a book explaining his evidence
d) while wegener was alive, important scientists supported his research

1. which of the following has common boundary shape with south america

a) north america
b) africa
c) inda
d) australia

1. which of wegeners pieces of evidence is labeled as climate changes?

a) 2
b) 4
c) 1
d) 3

1. which of the following layers is the thinnest?

a) inner core
b) outer core
c) crust
d) mantle

1. the mesosphere and outer core have the same characteristics

a) true
b) false

Explanation:

1. Earth's outer core is a liquid layer composed of molten iron and nickel, while the inner core is solid, crust is rocky, and continental crust is a subset of the crust.
2. Wegener's continental drift theory was initially rejected but later formed the basis for plate tectonics, so it was eventually accepted.
3. Wegener's theory was widely rejected by the scientific community during his lifetime; he did find evidence for moving landmasses, died in Greenland, and published his work.
4. The eastern coast of South America and western coast of Africa have complementary boundary shapes, supporting continental drift.
5. Wegener's climate change evidence includes glacial deposits in warm regions (labeled as piece 2 in standard evidence sets).
6. The crust is the outermost and thinnest layer of the Earth, much thinner than the mantle, outer core, and inner core.
7. The mesosphere (a solid layer in the mantle) is solid, while the outer core is liquid, so they have different characteristics.

Answer:

1. b) outer core
2. b) False
3. d) While Wegener was alive, Important scientists supported his research
4. b) Africa
5. a) 2
6. c) crust
7. b) False