A missing layer of rock is an: A. intrusion

B. isotope

C. unconformity

D. index fossil

Which features do all new rocks formed near oceanic ridge share? pillow shaped stripes pattern provide evidence to seafloor spreading made from molten material iron oriented in same direction

What can you learn about precipitation levels in south america from this map? brazil is experiencing a drought.it rains more in higher altitudes.peru received the highest level of rain.venezuela got less than 25 cm of rain. 

Which of the following is an environmental cost of agriculture? a. agronomyb. cash cropsc. pollutiond. crop rotation