2023 Flashcards
(11 cards)
1
Q
How is phosphorus in soils affected by human activity
A
Adding fertiliser
2
Q
How does a seismic survey work
A
Uses reflected sound waves to produce data on the density, depth and shape of the rock
3
Q
How does resistivity work
A
Measures the difficulty or ease of which electric current can pass through the rock
4
Q
How does gravimetry work
A
Measures and maps the variations in density of rocks
5
Q
What is an advantage of drones (4)
A
- large area of land covered
- relatively low cost
- less labour intensive
- minimal environmental impacts
6
Q
What is an advantage of trial drilling
A
- produces a physical sample
- defines ore quality and location
- tests rock stability
7
Q
How can noise pollution be reduced
A
- working at allocated times/ days (less disruption)
- maintain machinery to not squeak
- transport away from densely populated areas
8
Q
How can dust pollution be reduced
A
- spraying with water to weigh the particles down
- cover the removed loads as they are removed or before transporting
- wear protective equipment eg masks
9
Q
How can water turbidity be reduced
A
- water sedimentation before it can be released
- using filters before releasing
10
Q
How can the loss of an aesthetic landscape be reduced
A
- contract landscaper (build visual barriers)
- plant vegetation in the surrounding area
11
Q
How can unstable ground causing landslides be reduced
A
- add vegetation
- decrease the slope angle
- add support beams
