SACE Stage 2 Agricultural Systems Practice Questions - SACE Stage 2 Agricultural Systems External Assessment Exam

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In multispectral crop remote sensing, what does a high Normalized Difference Vegetation Index (NDVI) value (e.g., 0.8) indicate?

Dense, healthy vegetation absorbing red light and strongly reflecting near-infrared light Severe crop water stress and bare, dry topsoil with zero chlorophyll activity Extensive waterlogging and fungal root rot across the entire paddock High concentrations of toxic subsoil boron suppressing plant cell division

Correct Answer:

Dense, healthy vegetation absorbing red light and strongly reflecting near-infrared light

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