How is it that the open ocean produces the highest net primary productivity of earth's ecosystems, yet net primary productivity per square meter is relatively low? oceans have the largest area of all the ecosystems on earth. ocean ecosystems have less species diversity. oceanic producers are generally much smaller than oceanic consumers. oceans contain greater concentrations of nutrients compared to other ecosystems. oceans receive a lesser amount of solar energy per unit area.

Sarah is making a scale drawing of a painting that is 48inches wide by 120 inches high her paper is 12 inches wide and 24 inches tall she decides to use a scale 1 inches equals 4 inches is this a reasonable scale

Based on what you know about the location of the earth in relation to the sun, why is this called the goldilocks zone in other galaxies? a. it's a region that exhibits a weak gravitational pull, thus maintaining a safe distance from the sun. b. it's an area that doesn't experience any major weather events that could cause mass extinctions. c. it's an area that's an optimal distance from the sun for potentially supporting life. d. it's a region that's unaffected by asteroid or meteor impacts.

The magnitude of an earthquake is typically calculated according to the scale.           a. mercalli   b. fujita   c. richter   d. saffir-simpson