IGCSE Marine Science (0697) — May–June 2024, Paper 22

Fig. 1.1 shows a cross-section of the seabed from the coast to the open ocean. The cross-section shows land, a gradually sloping region (A), a flat deep region (B), and a raised…

Mackerel (Scomber scombrus) are caught using purse seine nets. Describe how purse seine nets are used to catch mackerel.

Fig. 3.1 shows a diagram of a rocky shore divided into zones. Three zones are labelled X, Y and Z. X is the zone below the low tide mark, Y is the zone between the high and low…

Table 4.1 shows the mass of plastic pollution produced by different continents. Continent Total mass (tonnes) Population Mass per person (kg) ----------- ---------------------…

Table 5.1 shows the nutritional content of 100 g of aquaculture salmon and wild salmon. Nutrient Aquaculture salmon Wild salmon ------------------ --------------------…

Fig. 6.1 shows the concentration of dissolved oxygen (mg per dm³) in fresh water and sea water at different temperatures (°C, from 0 to 50°C). Both lines decrease as temperature…