Unit 4 Lesson 1
13
What is agriculture?
The practice of cultivating plants and rearing animals to produce food, fiber, and other useful products.
What is Urbanization?
Increase in the population of people living in towns and cities
3 ways to help retain soil fertility?
* Crop rotation
* Green manure
* Limestone
What is soil fertility?
The ability of soil to sustain plant growth
How much of the world’s freshwater is usable for drinking?
.5 percent
Give me 5 jumping jacks for x4 the points
for x4 the points
Why does urbanization occur?
because people move from rural areas to urban areas
Soil conservation practices help reduce soil erosion. Conservation methods may include, but are not limited to, contour plowing, windbreaks, and no-till farming.
Growing a belt of trees around crop fields shelters spoil from the force of winds
What is aquaculture?
The practice of raising fish, shellfish, and seaweed in controlled aquatic environments
3 reasons for water scarcity are
What does Farmers work hard to prepare?
prepare the soil, plant seeds, provide water, and protect crops from pests and diseases.
What are the 5 benefits from urbanization
* Improvement in economy
* Growth of commercial activity
* Social and cultural integration
* Efficient services
* Resources of utilization
3 requirements of sustainable agriculture?
Aquaculture involves farming fish and other aquatic organisms to produce seafood. This method of farming uses relatively small enclosures or fish ponds.
Identify one disadvantage of the small area used for aquaculture.
Densely populated fish ponds can increase the spread of disease.
What is water abuse?
Toxic contamination of ground and surface water by industry and agriculture
What are the three main causes of the increase in greenhouse gases observed over the past 250 years?
fossil fuels, land use, and agriculture.
The fertility rate in cities is often _____________than in rural areas due to the absence of agriculture, the cost of children, food and living space in cities, and family planning.
Lower
What is a sustainable approach to mitigate climate change?
Shifting away from fossil fuel based energy sources to solar power
List the agricultural methods of soil conservation
* contour plowing
* wind breaks
* Perennials crops
* Terracing
* No-till agriculture
* Strip cropping
Would the development of herbicide-resistant plants be considered a benefit or a risk of genetic engineering in agriculture, and why?
Risk, because newer, more toxic herbicides will be needed to control resistant plants
x2 BONUS QUESTION:
What specific knowledge does a person in agriculture need to have?
knowledge of seasons, weather patterns, and proper care for different plants and animals.
what factors affects urbanization?
A range of economic, political,social, cultural and environmental factors affect urbanization.
A prescribed burn is a method by which forests are set on fire under controlled conditions to meet land management objectives.
Identify the main reason a prescribed burn is used for biodiversity.
It removes invasive species that threaten native species
What is ONE disadvantage of aquaculture?
Any 1 of these:
Waste water released contains feces.
Disease-causing bacteria, viruses, and parasites spread easily.
Fish escape may breed with wild fish population disrupting the local ecosystem.