What have scientists inferred about the outer portion of the earth's core by monitoring the time of arrival of p- and s-waves at monitoring stations around the world? a. it is a dense solid. b. it is liquid-like. c. it is organic material. d. it is a pressurized gas.

Which of the filling is an effect of the uneven heating of the earth by the sun ? a sea breeze a land breeze a convection current all of the above

Can someone me with this plz? ! i'm putting 20 points on it!

Short answer/constructed response: respond to the question in 3-5 complete sentences. give details or examples to support your answer. attempt to answer all parts of the question in paragraph form! using the source 1 map, pick two of the 1800's territorial acquisitions you believe were the most important in the development of the united states. provide at least two reasons per territory to explain why you think they were the most important.