Immediately after the Permian extinction event, the carbon dioxide and methane released by volcanism caused the Earth to
A) initiate a snowball Earth phase
B) start an ice age
C) begin a period of intense global warming
D) completely change the composition of its atmosphere
Question 2
Atmospheric pressure does NOT correspond to approximately
A) 0.1 MPa.
B) 1.0 102 N/m2.
C) 2.2 103 lb/ft2.
D) 2.4 102 oz/in2.
E) 15. lb/in2.