Approximately how old is the earth?
a.4.5 trillion years
b.4.5 million years
c.4.5 billion years
d.4.5 thousand years

Which of the following scenarios is an example of a trade sanction

Which features do all new rocks formed near an oceanic ridge share? check all that apply. pillow-shaped striped pattern provide evidence to seafloor spreading made from molten material iron oriented in same direction

Which of the following describes the relationship between elements of an ecosystem