1. MATCHING: Match the correct geological era with the items listed below. Choices will be used more than once. 1. The first one-celled organisms (microscopic life) appear a. Mesozoic Era b. Precambrian Era 2. Age of the oldest rocks c. Cenozoic Era 3. The "Age of Reptiles" d. Paleozoic Era 4. This era lasted nearly 4 billion years 5. This era started 248 million years ago 6. Dinosaurs became extinct 7. The "Age of Mammals" 8. The first land animals appear

3 = c

4= a

5= b

7= d

Explanation:

i already did this and got these

ones correct hope it helps

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

i think its y= -4x-14