Answer the questions below in complete sentences. • In what layer does plasticity and convection occur?
• Which layer is thinnest under the oceans and thickest in the mountains?
• Which layer is made of solid iron?
• Which layer is the hottest? The coolest?

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d

Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false

Methane gas created by a cows flatulence especially in a large herd is a greenhouse gas. true or false.