Agriculture and Forestry Quizzes

Disadvantages of Monocropping (3)

1. Erosion due to exposure of large areas of soil during planting 2. Pests are more likely o attack a mono crop due to the high concentration 3. Reduction of productivity due to loss of nutrient-rich topsoil

CAFOs make meat more economical, but may have some negative impacts (4)

1. High concentrations of animal waste 2. Increase in nutrients in stormwater runoff 3. Increase in sediments in stormwater runoff 4. Increase in strains of antibiotic resistant microorganisms AND NOT INCREASED USE OF LAND OVER OTHER TYPES OF ANIMAL FARMING

The first green revolution improved agricultural yields using what three things

1. Inorganic Fertilizers 2. Increased Pesticides 3. Irrigation systems AND NOT GMOS

Massive Forest fires that burn large areas and destroy canopy are most likely to benefit: A. Early succession species seeking to find a niche B. Late succession species that are easily re-established C. Apex Species that dominated prior to the fire D. Density-Dependent parasites such as bark boring species E. Mobile canopy species such as upper canopy warblers

A

No till Farming will most likely lead to all of the following except: A. Decrease in the use of herbicides B. Decrease in wind erosion C. Decrease in water erosion D. Regeneration of natural soil horizons E. Reduction of CO2 emissions from the soil

A

Which of the following is not a benefit of industrial agriculture: A. The ratio of energy input to calorie output is low B. Larger food production per hectare C. Monoculture can be more efficient D. Economy of sale can make the food less expensive

A

All of the following factors contributed to a doubling of US food productivity since 1940 except A. Increased use of fossil fuels B. Increased amount of arable land C. Increased use of pesticides D. Increased use of inorganic fertilizers

B.

Marine fisheries are particularly susceptible to the tragedy of the commons because: A. Fish are r-selectors that experience boom and bust cycle B. Fish are highly migratory, so they don't belong to any one nation C. Pollution is highest in areas with high fish populations D. International waters are governed by antiquated nautical law E. Fishery collapse is viewed by many countries as a sign that they are managing fish populations properly

B.

Selective Cutting has many benefits which do NOT include: A. Mimicking natural canopy Disturbances B. Optimum Growth for sun loving species C. Mature trees that remain in the ecosystem and in reseeding D. Soil erosion is reduced when compared to clear cutting E. The multi-age mosaic generally increases biodiversity

B.

Which of the following is a commercially used method for harvesting trees and is most likely to lead to a fragmented landscape with serious impacts on biodiversity? A. Selective Cutting B. Clear Cutting C. Shelter-Wood cutting D. Slash and Burn clearing

B.

Benefits of aquaculture include: A. Low yield per unit B. Use of more industrialized machinery and fossil fuels C. High production of a quality protein food source D. Loss of fish through pesticide poisoning

C

Problems with aquaculture include all of the following except: A. Making a fish vulnerable to disease B. Contamination of water with waste C. Production of high yields of a human food source D. Creation of an imbalance in the natural ecosystem

C

An even-aged management's strategy's goal is: A. Sustenance of maximum biological diversity B. High quality timber products C. A long term ecologically oriented approach D. Production of maximum return on short-term products

C.

Which of the following is true of farm raised salmon? A. They are more genetically diverse than their wild counterparts B. They seldom escape from their containment areas C. They are often infected with parasites and sea lice D. They are maintained at lower population densities than wild salmon

C.

A production process that concentrates large numbers of animals in relatively small and confined places, and that substitutes structures and equipment (for feeding, temperature controls, and manure management) for land and labor.

CAFO

For trees that grow best in full-to-moderate sunlight in medium to large sized clearings; Removes all trees from an area in a single cutting

Clear Cutting

From an economic point of view, which forest harvesting technique is generally best?

Clear Cutting

All of these are examples of advantages of synthetic fertilizers over organic animal waste fertilizers except: A. Ease of application B. Highly adjustable nutrient content C. Highly concentrated when produced D. Lack of nutrient runoff peoblems

D

Which of the following types of agriculture is most characteristic of developing countries A. Plantation Agriculture B. Traditional Intensive Agriculture C. Traditional subsistence agriculture D. Industrialized Agriculture

D

Many Scientists argue that worldwide fisheries are declining, yet the worldwide number of fish harvested continues to increase. What would best explain the discrepancy: A. The scientists are being overly cautious B. More people are reporting the fish that they catch C. Only apex predator populations are collapsing D. An increase in fishing technology and increased fishing effort are leading to an increase in catch despite the declining populations

D.

Old-Growth forest can be described by all the following except: A. Have not been disturbed for several hundred years B. Large number of fallen logs C. Provide a variety of ecological niches D. A clear forest floor

D.

Which is NOT a problems with clear cutting as a means of timber harvest: A. The possibility of raising water temperatures B. Increased soil erosion C. Lack of cover for certain wildlife D. Herbicide use prior to replanting it E. High cost of clear cutting when compared to other methods

E

Occurred in 1950 due to high-input farming(1950-1970)

First Green Revolution

Scientists have inserted a gene for the production of Vitamin A into rice. This practice of changing the genetic structure of agricultural products to improve desirable traits is known as:

Genetic Enginnering

Forests provide which of the following I. Fuel II. Oxygen III. Habitat

I,II, III

A form of modern farming that refers to the industrialized production of livestock, poultry, fish, and crops. The methods of industrial agriculture are technoscientific, economic, and political

Industrialized Agriculture

The agricultural practice of growing a single crop year after year on the same land, in the absence of rotation through other crops or growing multiple crops on the same land

Monocropping

A steady diet of high calorie, low nutrition fast food may lead to:

Over nutrition and Malnutrition

The major cause for the decline in the worldwide catch of fish since 1990 is:

Overfishing

Agriculture that involves growing cash crops in mono culture farmland without a heavy reliance on increased technologies is: (type of agriculture)

Plantation Agriculture

Taken place since 1967, using fast growing dwarf varieties of rive and wheat specifically bred for certain climates in several developing countries

Second Green Revolution

The cutting down of selected trees in a forest so that growth of other trees is not affected

Selective Cutting

The production of food, fiber, or other plant or animal products using farming techniques that protect the environment, public health, human communities, and animal welfare.

Sustainable Agriculture

T or F: A key component of sustainable agriculture is soil protection

T

T or F: Sustainable agriculture is more labor intensive than conventional agriculture, and so cost is an issue in areas with high labor costs

T

T or F: Sustainable agriculture is often based on traditional agriculture techniques

T

In a developing country, a village consists of several families farming and producing agricultural products for trade and sale. This type of farming is:

Traditional intensive agriculture

Which of the following methods of harvesting fish is most destructive to bottom habitats?

Trawling

The root cause of starvation worldwide is:

Unequal distribution of food resources

On your farmland, you alternate areas of wheat with rows of apple trees. Your work is an example of:

agroforestry