How would you be able to determine from where nutrient influx comes? could you prove this?

70 ! in 2-3 paragraphs of 250-300 words, compare and contrast parallel and relative keys. give clear definitions and specific examples to support your answer.

Which statements describe continental crust? select the three correct answers. a-it is formed in all parts of the continents. b-it is made mostly of volcanic rock. c-it is destroyed by melting near the top of the mantle. d-it is less than 10 km thick. e-its ages ranges from very young to more than 4 billion years old.

Which is a type of tectonic plate boundary?