Question

which environmental factor most significantly threatens agricultural sustainability in sub - saharan africa?
insect populations
wind patterns
temperature fluctuations
water scarcity

Explanation:

Sub - Saharan Africa is known for its arid and semi - arid regions. Water is crucial for agriculture. Water scarcity severely limits crop growth and livestock rearing, making it a major threat to agricultural sustainability. Insect populations, wind patterns, and temperature fluctuations can also impact agriculture but are not as overarching a threat as water scarcity.

Answer:

Water scarcity