I think it is the 3rd answer choice.
1-choose any two points on the line.
2-draw a right-angled triangle with the line as hypotenuse.
3-use the scale on each axis to find the triangle's: vertical length.horizontal length.
4-work out the vertical length ÷ horizontal length.
5-the result is the gradient of the line.
Answer:The social benefits include access to forest products that households rely on for their subsistence, such as firewood, fodder for livestock and timber for housing. The main ecological benefit is higher biodiversity in the tropical forests. . Tree species richness was used as the indicator of forest biodiversity
Answer:
All large cities use surface water as a water source.
