5. a) examine coarse sandstone and greywacke. what is the textures of the greywacke? b) how are the sandstone and greywacke similar? c) how do they differ, and why? d) examine greywacke using a magnifying glass. compare this with the sandstone you examined in question 1. d). what are the similarities and differences? (hint - consider clast size, shape and distribution).

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks

Which characteristics of temperature and salinity have the greatest influence on the movement of deep-ocean currentsa. warm and low salinityb. cold and high salinityc. cold and low salinityd. warm and high salinity

Name the peninsula that separates the bering sea from the sea of okhotsk?