Half life question: Based on the graphs, which of these statements is correct about Material 1 and Material 2? A) The half-lives of Material 1 and Material 2 are same.
B) The half-life of Material 1 is double the half-life of Material 2.
C) After 2 half-lives, equal amounts of Material 1 and Material 2 are left.
D) After 2 half-lives, the amount of Material 1 left is double the amount of Material 2 left.

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

b. to discover aspects of the natural world.

hopefully i .

more words for this could be abiotic and biotic

abiotic: living organisms within an ecosystem

biotic: non-living organisms within an ecosystem

. the sierra madre fault zone of southern california

. the san andreas fault california