Why have many small pieces of plastic floating in the pacific ocean drifted into an area known as the “great pacific garbage patch? ”?

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

What's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4