Land Pollution

Question 1

identify: Disposing something to the land beyond its assimilative capacity (the capacity to purify itself)

Answer 1

land pollution

Question 2

Land pollution is the result of introducing substances, biological organisms, or energy into the soil, resulting in a change in ___

Answer 2

soil quality

Question 3

most vulnerable age sector in land pollution

Answer 3

: extremes of ages)

Question 4

Land pollution reduces the uses of the land for three main purposes. Enumerate

Answer 4

agricultural
recreational
residential

Question 5

identify: The surface layer of the earth consisting of solid matter, water, and air that is inhabited by microorganisms and animals, and offers anchorage to plant roots

Answer 5

soil

Question 6

soil composition: enumerate

Answer 6

Minerals
Air
Water
Organic matter from plant and animal residue

Question 7

How do minerals become part of the soil? Enumerate two ways

Answer 7

O Derived from underlying bedrock

O Transported and deposited by rivers, ocean currents, windstorms, or landslides

Question 8

Five main layers of soil: O,A,B,C, and D. What is the D layer?

Answer 8

bedrock

Question 9

Five main layers of soil: O,A,B,C, and D. What is the C layer?

Answer 9

weathered parent materials

Question 10

Five main layers of soil: O,A,B,C, and D. What is the B layer?

Answer 10

subsoil; accumulation of iron aluminum, humid compounds

Question 11

Five main layers of soil: O,A,B,C, and D. What is the A layer?

Answer 11

top soil; organic matter (humus), living organisms inorganic minerals dissolved materials move downward

Question 12

Five main layers of soil: O,A,B,C, and D. What is the O layer?

Answer 12

surface litter; fallen leaves and partially decomposed organic debris

Question 13

When A & D are contaminated, soil & water quality are affected. T/F?

Answer 13

F

A and B dapat..

Question 14

Enumerate 4 functions of soil

Answer 14

Bearing function
Production or plant growth function
Decomposition or ecological function
Filter function

Question 15

Explain soil’s ecological function

Answer 15

 Soil is where decomposing organisms thrive; where nitrification (conversion of ammonium to nitrite) occurs

Question 16

explain soil’s bearing function

Answer 16

Support or serves as a platform for a building/infrastructure

Question 17

What does soil filter?

Answer 17

water

Question 18

Enumerate 6 main sources of land pollution

Answer 18

chemical spills 
improper disposal of industrial waste
agriculture
mining and quarrying
sewage sludge
household waste

Question 19

Which is not an effect of improper disposal of industrial waste?
A.Elevated salt content of soil
B.High rate of evaporation
C.Too much rainfall
D.Plants could not cope with high content of soil

Answer 19

C

inadequate dapat

Question 20

Some leakage of industrial waste occurs due to chemicals that outlive the container. T/F?

Answer 20

T

Question 21

There are two kinds of mining: surface and underground. Which involves/requires removal of overburden material to access the ore?

Answer 21

Surface mining

Question 22

What is laterization?

Answer 22

erosion due to removal of vegetation.

Question 23

There are different mechanisms of erosion. identify this one: thin uniform layers of soil are peeled off from land surface

Answer 23

sheet erosion

Question 24

There are different mechanisms of erosion. identify this one: when little flow of running water gather together and cut small channels in soil

Answer 24

Rill erosion

Question 25

There are different mechanisms of erosion. identify this one: when rill enlarge to form bigger channels or ravines that are too large to be removed by normal tillage operations (e.g. Mayon volcano)

Answer 25

gully erosion

Question 26

There are different mechanisms of erosion. identify this one: washing away of soil from the banks of established streams, creeks or rivers

Answer 26

Stream Bank

Question 27

When a liquid pollutant is discharged on the ground surface, there are four possibilities that may occur. enumerate

Answer 27

1. Pollutant is washed away by precipitate, accumulate somewhere else
2. pollutant may evaporate if volatile, to cause air pollution
3. Pollutant could infiltrate unsaturated soil
4. Bioaccumulation and biomagnification

Question 28

Differentiate bioaccumulation fr biomagnification

Answer 28

Bioaccumulation: Increase in concentration of a pollutant from the environment to the first organism in the food chain
Biomagnification: Increase in concentration of a pollutant from one link in a food chain to another

Question 29

define bioremediation

Answer 29

a treatment process that uses microorganisms (yeast, fungi or bacteria) to break down, or degrade hazardous substances into less toxic or nontoxic substances (carbon dioxide and water)

Question 30

Which does not favor bioremediation?
A. Water available (near field capacity)
B. Nutrients (N, P, K) in adequate supply
C. C:N ratio l

Answer 30

D

dapat “similar to”