IGCSE Marine Science (0697) — October–November 2024, Paper 12

Fig. 1.1 shows the layers of the Earth, drawn as a cut-away sphere. Four layers are labelled with leader lines: J points to the thin outer shell, K to the thick layer beneath it,…

Draw one line from each name to its correct definition. Names: community; habitat; population; environment. Definitions provided: - the community and the environment interacting…

The open ocean is divided into three zones. These are the sunlight zone, the twilight zone and the midnight zone. Describe why the concentration of oxygen is high in the sunlight…

Fig. 4.1 shows a plant cell. Four structures are labelled A, B, C and D with answer lines, and the mitochondria are already labelled. A points to a dark oval structure, B to a…

Fig. 5.1 shows the Niger Delta and the locations of some of the oilfields in the area. A map of Nigeria shows the Niger Delta region shaded, with many points marked as oilfields…

The water cycle occurs in all parts of the World Ocean. Explain why rates of evaporation are different between polar and tropical areas of the World Ocean.

Fig. 7.1 shows the direction of the wind in the Pacific Ocean in a normal year and in a year when an El Niño effect is occurring. In a normal year, arrows over the Pacific point…

Fig. 8.1 shows the migration routes of bluefin tuna across a map of the Pacific. Solid lines show mature fish routes and dashed lines show juvenile fish routes; an area labelled X…