Scientists have direct evidence of Earth's structure to
A) about 2 km (1.2 mi) from the surface.
B) the upper mantle (250 km (155 mi)).
C) 10 km (6 mi) from the surface, based on the deepest well shaft.
D) the inner core.
Question 2
Longer falls and earlier springs caused by climate change have lengthened the growing season in the United States.
Indicate whether the statement is true or false
