What is a possible explanation for why the giant ice caps that covered a
supercontinent in the Paleozoic era melted?
O
A. Volcanic outgassing increased the greenhouse effect.
O
B. Oxygen in the atmosphere built up, raising global temperatures.
O
C. Plant life turned oxygen into carbon dioxide, increasing the
temperature.
O
D. Marine life thrived during this period.

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

Apuppy’s tendency to chew is inherited through which of the following? a. through learned behavior b.through genes c. through seasonal cycles d. through hibernation

Which type of landform forms at the plate boundary as a result of divergent stress