Answer:
Answer b is the right one
Bio-Engineering is the use of living vegetation, either alone or in conjunction with civil engineering structures and non-living plant material, to reduce shallow-seated instability and erosion.
<u>Explanation:</u>
DEVELOPMENT OF BIO-ENGINEERING:
In Germany and Austria wishes to use the low-cost local materials and traditional constructions due to their Financial restrictions of pre-war years 1930's
ADVANTAGES OF BIO-ENGINEERING:
Re-establishing vegetation and store the hydrology from the surface to control of accelerated erosion.
Cost-effective treatments:
- landslides
- Roadside failures
- River stream banks
- mining reclamation.
EXAMPLE:
GRASS PLANTING
Usually planting the large grass clumps in lines across the slope.
Horizontal lines are used to increase the protection against erosion.
<span>United States: 0.308 quads/million people.
Japan: 0.165 quads/million people.
This is a simple matter of division. Take the total energy used and divide among the number of people using it. So:
United States:
97.5 / 316.5 = 0.308056872 quads per million people.
Japan:
21 / 127 = 0.165354331 quads per million people.
Rounding to 3 significant figures gives 0.308 quads/million for United States and 0.165 quads/million for Japan.</span>
Marine resources are presently not renewable because the rate of their use is far greater than their replenishment time.
<h3>What are renewable resources?</h3>
Renewable resources are those resources which can be replenished when they are used up within a shirt time.
Marine resources refers to those resources found in the marine habitat such as fishes, crabs, mussels, etc.
Marine resources are being used at a rate higher than they can be replenished.
Therefore, marine resources are presently not renewable because the rate of their use is far greater than their replenishment time.
Learn more about renewable resources at: brainly.com/question/79953
#SPJ1
