(1) Table 1 gives the latitude of the subsolar point at ten-day intervals throughout the year. Plot theses points on the blank graph (A) and connect them with a smooth curve.

Table 2 gives the intensity of insolation at various latitudes throughout the year. Plot these monthly values for the following latitudes: 0, 20N, 40S, 60N, 90N on the blank graph

(2B). Enter the data point in the middle of the month as shown on the partially drawn line for 60N. Connect the points with a smooth curve and label the latitude. There should be 5 separate curves on the graph, and one curve is for one latitude

Table 1 The latitude of subsolar point throughout the year Date Subsolar Point Jan 1 10 20 23 S 22 20 Date Subsolar Point Jul 10 22 20 21 18 30 171 15 11 Jun 10 20 30 23 23 23 Table 2 Insolation throughout the Year (one unit is 889 gram calories per square centimeter) Latitude 90 80 6 0 40 N Jan. Feb. Mar. Apr. May Jun ... ... 1.9 17.5 31.5 36.4 .. 0. 1 5 .0 17.5 30.5 35.8 3.0 7.4 14.8 23.2 30. 2 33.2 12.5 17.0 23.1 28.6 32.4 33.8 22.0 25.1 28.6 30.9 31.8 32.0 29.4 30.4 30.6 29.6 28.0 27.1 33.8 32.2 29.0 24.9 21.2 19.6 34.8 30.4 23.9 17.4 12.5 10.4 33.0 25.3 16.0 8.1 3.3 1.7 34.2 20.5 6.3 0.3 ... ... 34.7 20.7 3.2 ... ... ... Jul 32.9 32.4 31. 1 32.8 31.8 27.6 20.5 11.6 2.7 .. ... Aug 21.1 20.9 24.9 29.4 30.9 28.6 23.7 15.8 6.5 . ... Sep 4.6 7.4 16.7 24.3 28.9 30.1 27.7 21.9 13.6 3.8 1.0 Oct Nov Dec. Total for year 145.9 0.6 ... 150.2 9.0 3.8 1.9 199.2 18.4 13.4 11.1 276.8 25.8 22.5 20.9 331.2 30.2 29.5 28.9 350.0 31.1 33.3 34.1 331.1 28.5 33.6 36.0 276.8 22.6 31.1 35.3 199.2 16.0 31.0 38.1 150.2 15.6 31.5 38.7 145.4 Equator 20 40 * S 60 80 90 Subsolar Point FMA M AISON Graph A Insolation units per month LLLLLLLL LLLLLLLL Graph B Table 1 The latitude of subsolar point throughout the year Date Subsolar Point Jan 1 10 20 23 S 22 20 Date Subsolar Point Jul 10 22 20 21 18 30 171 15 11 Jun 10 20 30 23 23 23 Table 2 Insolation throughout the Year (one unit is 889 gram calories per square centimeter) Latitude 90 80 6 0 40 N Jan. Feb. Mar. Apr. May Jun ... ... 1.9 17.5 31.5 36.4 .. 0. 1 5 .0 17.5 30.5 35.8 3.0 7.4 14.8 23.2 30. 2 33.2 12.5 17.0 23.1 28.6 32.4 33.8 22.0 25.1 28.6 30.9 31.8 32.0 29.4 30.4 30.6 29.6 28.0 27.1 33.8 32.2 29.0 24.9 21.2 19.6 34.8 30.4 23.9 17.4 12.5 10.4 33.0 25.3 16.0 8.1 3.3 1.7 34.2 20.5 6.3 0.3 ... ... 34.7 20.7 3.2 ... ... ... Jul 32.9 32.4 31. 1 32.8 31.8 27.6 20.5 11.6 2.7 .. ... Aug 21.1 20.9 24.9 29.4 30.9 28.6 23.7 15.8 6.5 . ... Sep 4.6 7.4 16.7 24.3 28.9 30.1 27.7 21.9 13.6 3.8 1.0 Oct Nov Dec. Total for year 145.9 0.6 ... 150.2 9.0 3.8 1.9 199.2 18.4 13.4 11.1 276.8 25.8 22.5 20.9 331.2 30.2 29.5 28.9 350.0 31.1 33.3 34.1 331.1 28.5 33.6 36.0 276.8 22.6 31.1 35.3 199.2 16.0 31.0 38.1 150.2 15.6 31.5 38.7 145.4 Equator 20 40 * S 60 80 90 Subsolar Point FMA M AISON Graph A Insolation units per month LLLLLLLL LLLLLLLL Graph B