Iam struggling with some questions: 1) i need two objects or worlds that will still be geologically active when in 4byrs the earth will have entered its big chill.
2) how most meteorites get from the asteroid belt to the earth?
3) why earth's moon cannot retain an atmosphere and saturn's moon and titan can?
4) why cannot determine the absolute ages of the surfaces of jupiter's moons, calisto and genymede

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.