2 How do we describe the two different kind of igneous rock by their texture?
A fine grained and coarse grained
B mafic and felsic
C foliated and nonfoliated
D clastic and organic

The boat's velocity relative to the riverbank can be resolved into two components. the component going north is 2.7 m/s and the component going west is 1.2 m/s.we add these two vectors and then find the magnitude of the resultant to get the speed.the magnitude of the resultant vector from adding can be obtained by the pythagorean theorem.    to two significant figures, the boat's speed relative to the riverbank is 3.0 m/s.

They all deal with hard evidence(scientific)

The correct answer is antinodes