Question 1 of 5
On page 12, #3: What factor might be contributing to global warming?
(1 point)
A. Helium released from burning petroleum fuels.
B. Hydrogen sulfide released from burning petroleum fuels,
C. Nitrous oxide released from burning petroleum fuels
D. Carbon dioxide released from burning petroleum fuels.
Question 2 of 5
ALLERI

Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?

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

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?