14. Have your thoughts about the Great Pacific Garbage Patch changed since we first talked about it earlier in the year? Do you think it is a major concem in the world today? Yes i think explain its a opinion question ​

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

Oil rich countries in the middle east cover about 4% of earths total land area but prossess about 48% of the worlds known oil reserves what is the main reason for high concentration of reserves in this part of the world

An alpha particle is: a hydrogen atom a nucleus of helium two neutrons an electron