What are the environmental and social impacts of small hydroelectric power plants (PCHs)? Alteration of the physical, chemical and geomorphological...

What are the environmental and social impacts of small hydroelectric power plants (PCHs)?
Alteration of the physical, chemical and geomorphological characteristics of the river
Changes in primary productivity
Changes in consumer communities
Global impacts on climate
Regional impacts on the entire watershed
Local environmental and social consequences
Blocking of sediment flow
Changes in the flood and drought cycle of the river
Impediment of fish migration
Reduction of oxygen levels upstream and downstream of the dam
Fragmentation of the aquatic ecosystem
Displacement of populations
Loss of access to ecological services
Small hydroelectric power plants (PCHs) have insignificant impacts on the environment and communities
The impacts of PCHs are well documented and understood
The impacts of PCHs are similar to those of large dams
The impacts of PCHs are different from those of large dams
a) Alteration of the physical, chemical and geomorphological characteristics of the river, changes in primary productivity, changes in consumer communities, global impacts on climate, regional impacts on the entire watershed, local environmental and social consequences, blocking of sediment flow, changes in the flood and drought cycle of the river, impediment of fish migration, reduction of oxygen levels upstream and downstream of the dam, fragmentation of the aquatic ecosystem, displacement of populations, loss of access to ecological services. False, false, false, true.
b) Alteration of the physical, chemical and geomorphological characteristics of the river, changes in primary productivity, changes in consumer communities, global impacts on climate, regional impacts on the entire watershed, local environmental and social consequences, blocking of sediment flow, changes in the flood and drought cycle of the river, impediment of fish migration, reduction of oxygen levels upstream and downstream of the dam, fragmentation of the aquatic ecosystem, displacement of populations, loss of access to ecological services. False, true, false, false.
c) Alteration of the physical, chemical and geomorphological characteristics of the river, changes in primary productivity, changes in consumer communities, global impacts on climate, regional impacts on the entire watershed, local environmental and social consequences, blocking of sediment flow, changes in the flood and drought cycle of the river, impediment of fish migration, reduction of oxygen levels upstream and downstream of the dam, fragmentation of the aquatic ecosystem, displacement of populations, loss of access to ecological services. False, false, true, false.
d) Alteration of the physical, chemical and geomorphological characteristics of the river, changes in primary productivity, changes in consumer communities, global impacts on climate, regional impacts on the entire watershed, local environmental and social consequences, blocking of sediment flow, changes in the flood and drought cycle of the river, impediment of fish migration, reduction of oxygen levels upstream and downstream of the dam, fragmentation of the aquatic ecosystem, displacement of populations, loss of access to ecological services. True, false, false, false.