Question

Healthy ecosystems maintain which of the following sets of conditions?

Options

• Species extinction rates, habitat loss, and population decline

• Medicinal compounds, valuable genes, and industrial raw materials

• Soil fertility, water balance, and food chains

• Timber production, fuel supply, and fibre availability

Answer 1

Healthy ecosystems maintain soil fertility, water balance, and food chains. These are indirect ecological benefits, and the ecological services provided by nature support agriculture and human survival.