Evaluate soil loss, nutrient inputs, chemical pollution and greenhouse-gas impacts of agricultural practices.
Tę umiejętność sprawdza 9 zadań wzorowanych na arkuszach IB z lat 2023–2026.
Carbon chemistry underlies the origin, storage and sustainable production of biological material. (a) Outline environmental conditions on early Earth that favoured diverse carbon compounds. (b) Describe practices that can make agriculture sustainable. (c)…
A crop is modified to survive treatment with a particular herbicide. Discuss potential benefits and risks of growing this herbicide-resistant crop.
Phosphate fertilizer is applied to farmland. Discuss benefits and risks of this practice.
Phosphate becomes available to organisms through several processes. State two sources of phosphate in an ecosystem.
Suggest two factors other than elevation that could explain differences in leaf nitrogen.
State one process by which phosphate can move from farmland into a river.
Outline why phosphate availability might limit agriculture in the future.
State one process by which phosphate can move from farmland into a river.
Outline why phosphate availability might limit agriculture in the future.
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