IB ESS Paper 1 Exam Questions with 100% Verified Correct Answers 2025/2026

IB ESS Paper 1 Exam Questions with 100% Verified Correct Answers 2025/2026 Biomes - Correct Answer Major zones on the earths surface characterised by different natural vegetation caused by different climates Freshwater aquatic - Correct Answer Ponds, lakes, river Marine aquatic - Correct Answer Oceans Forest - Correct Answer a large area of land covered with trees eg tropical (hot, humid) or temperate (mild temperatures) Types of forest, their location and vegetation - Correct Answer 1. Boreal forest, subarctic, evergreen&coniferous 2. Temperate, warm, mid latitudes, mixed woodlands 3. Tropical and subtropical, between tropics of cancer and capricorn (hot and humid), subtropical broadleaf evergreen trees - high precip - high levels of humidity - rich soils - warm summers, cool winters - in winter, temps drop, stopping photosynthesis, vegetation goes dormant and NPP is very low - longer daylight hours during spring and summer - produces 75% of worlds NPP - large dense layer of vegetation Grassland - Correct Answer A biome where grasses are the main plant life eg Savanna or temperate (mild temperatures) Types of grassland, their location - Correct Answer 1. Tropical savanna grassland, located between tropic rainforests and deserts eg Africa, india 2. Temp