Which statement BEST explains why the model is useful for analyzing global changes to Earth systems?

Which of the following lines of evidence would best support your assertion that a particular plant is an angiosperm? a) it produces seeds. b) it retains its fertilized egg within its archaegonium. c) it lacks gametangia. d) it undergoes alternation of generations.

9. wind power creates pollution. water air soil noise

What is the farthest destination to date for a human spaceflight mission?