(ii) Calculate the percentage increase in the rate of photosynthesis at a light
intensity of 1250 arbitrary units when the carbon dioxide concentration was
increased from 140 ppm to 1000 ppm.
Show your working and give your answer to the nearest whole number.

3. draw a topographic map that displays the following features: (4 points each) a. the contour interval is 20 meters. b. the point of lowest elevation is 960 meters. c. the point of highest elevation is 990meters. d. there is at least one sinkhole or depression, at any elevation. e. there is at least one steep slope and one gentle slope.