Uni 1
Identify the worlds continenets
Africa,Antarctica,Asia,Europe,NA,SA,Oceania
Describe the scientific method
Question, Research, Hypothesis, Experiment, Data Analysis, Conclusion, and Communication
What is deforestation
the action of clearing a wide area of trees.
What is rationing
Rationing is the controlled distribution of scarce resources, goods, services, or an artificial restriction of demand.
What is contraception
Contraception is the act of preventing pregnancy.
Identify the worlds major Oceans
Atlantic,Pacific,Indian,Arctic,Southern Oceans
Outline a benefit of quadrats
It is an important method by which organisms in a certain proportion of the habitat are counted directly. It is used to estimate population abundance, density, frequency and distributions.
What is ozone depletion
Ozone layer depletion is the thinning of the ozone layer present in the upper atmosphere.
What are two ways of acid deposition
wet, and dry
How do you calculate dependency ratio
young population+old population/population age 15-64
Describe the water cycle
condensation,Percipitation,interception,infiltration,surface runoff, throuh flow, ground water flow, transpiration,evaporation
How do do use the lincoln index
N=n1xn2/m2
What is a side effect of mineral extraction
deforestation, erosion, contamination and alteration of soil profiles, contamination of local streams and wetlands, and an increase in noise level
outline the formation of acid deposition
Acid deposition, commonly known as acid rain, occurs when emissions from the combustion of fossil fuels and other industrial processes undergo complex chemical reactions in the atmosphere and fall to the earth as wet deposition (rain, snow, cloud, fog) or dry deposition (dry particles, gas).
Describe an impact of higher tax revenues
High marginal tax rates can discourage work, saving, investment, and innovation, while specific tax preferences can affect the allocation of economic resources.
What is the troposphere
State and explain one method of data collection
the practice of obtaining information or input into a task or project by enlisting the services of a large number of people, either paid or unpaid, typically via the internet.
Explain causes of food security
It may be influenced by a number of factors, including income, employment, race/ethnicity, and disability. The risk for food insecurity increases when money to buy food is limited or not available.
Outline impacts of acid deposition
Soils have become more acidic and less fertile, and forests in many areas are showing signs of acidification-related stress. The acidification of surface waters can lead to declines in the fish population. Acidic water also affects aquatic plants and insects that are eaten by fish.
what are LICs and HICs
Low-income countries (LICs) – Countries with a low level of economic development are known as LICs. High-income countries (HICs) – Countries with a high level of economic development are known as HICs.
Outline a biotic interaction
One kind of relationship is symbiosis. Symbiosis literally means living together, and describes two different species live together in a close relationship.
Define benifits and limitations of big data
Advantages include improved decision making, reduced costs, increased productivity and enhanced customer service. Disadvantages include cybersecurity risks, talent gaps and compliance complications.
Outline an impact of food insecuirty
A famine is defined as the most severe kind of hunger crisis. It is very rare, but when it does occur, it means that there is an extreme shortage of food and several children and adults within a certain area are dying of hunger on a daily basis.
Explain causes of water insecurity
Water insecurity can be caused by physical factors, such as climate, salt encroachment, and geology, and human factors, such as population/demand
Describe a stratagy for managing changing populations
High-quality health care helps prevent diseases and improve quality of life.