Grade 8 Science Benchmark #3 Earth / 23 of 24 The Environmental Protection Agency was assigned which task?
O A. setting standards and governing the cleanliness of water used by Americans
B. setting standards and governing the highways and interstates in the United States
C. setting standards and governing the use of national parks and monuments in the United States
D. setting standards and governing the civil and commercial air transportation throughout America

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