Sand Is Full of Life and Death

What is the primary focus of the video, as opposed to the usual microcosmos mindset?

• Microscopic algae

• Leaves and moss

• Grains of sand

• Bristle worms

What is the main mineral found in most sand samples?

• Basalt

• Feldspar

• Iron oxide

• Quartz

What role do spicules play in the ecosystem of beaches?

• They are a type of mineral

• They are part of sponge exoskeletons

• They are a type of fish

• They are a type of algae

What causes the black sand beaches of Hawaii?

• Erosion of coral reefs

• Erosion of volcanic material

• Deposition of quartz

• Deposition of feldspar

How is white sand formed in Hawaii?

• From iron oxide

• From parrotfish digestion

• From eroded volcanic rock

• From feldspar deposits

What gives Bermuda beaches their famous pink color?

• Quartz

• Foraminifera shells

• Basalt

• Iron oxide

What is the relationship between biology and geology as discussed in the video?

• They are completely separate fields

• Geology influences biology, but not vice versa

• Biology influences geology, but not vice versa

• They are interconnected and influence each other