Chapter 1 Online quizzes

In Tanzania (population 55.6 million in 2016) a total of 10.1 million tonnes of wheat were consumed in 2016. According to the World Bank, the average wheat yield in Tanzania that year was 1.54 tonnes per hectare. How many hectares of wheat were needed to meet demand, and how many hectares did the average Tanzanian require to meet their wheat demand in 2016?

A total of 15.6 million hectares were needed, with 0.18 hectare/individual

A total of 15.6 million hectares were needed, with 0.12 hectare/individual

A total of 6.6 million hectares were needed, with 0.12 hectare/individual

A total of 6.6 million hectares were needed, with 0.18 hectare/individual

A common term used to describe the productive area of Earth needed to support the lifestyle of one person in a particular country is called ____.

Carrying Capacity

Biocapacity

Ecological Footprint

Demand

What are the essential characteristics that indicate whether a resource should be categorized as renewable?

They are flows which, when used sustainably, will not run out and are always available

They are flows which, when used sustainably, will not run out but cannot be guaranteed to be always available

Carrying capacity is expressed using which of the following units?

Individuals per area (e.g. individuals/hectare)

Area per population (e.g. hectares/population)

Area per individual (e.g. hectares/individual)

Total number of organisms per country

According to many scientists we have entered the Anthropocene: what is meant by this term?

A new geological epoch driven by human activities which affect global climate and environmental processes

An interglacial period with a very stable climate and temperature providing a stable environment in which life could flourish, allowing for the development of agriculture, and the rise of civilizations on many continents

A period during which Earth's climate experienced large fluctuations in temperature: ice ages were followed by short, warm periods

None of the options given is correct

Which of the following is true with regards to the concept of planetary boundaries?

They are a set of indicators and thresholds for key environmental processes. Staying within these boundaries will allow us to persist in an Pleistocene-like state

They are a set of indicators and thresholds for key environmental processes. Staying within these boundaries will allow us to persist in a Holocene-like state

They are a set of indicators and thresholds for key social and environmental processes. Staying within these boundaries will allow us to persist in a Holocene-like state

They are a set of indicators and thresholds for key social and environmental processes. Staying within these boundaries will allow us to persist in an Pleistocene-like state

What is the difference between stocks and flows?

Flows are resources that require time to accumulate and are therefore called non-renewable resources. In contrast, stocks do not out run when used sustainably, and are therefore called renewable resources.

Stocks are resources that require time to accumulate and are therefore called non-renewable resources. In contrast, flows do not out run when used sustainably, and are therefore called renewable resources.

Stocks are resources that require time to accumulate and are therefore called renewable resources. In contrast, flows do not out run when used sustainably, and are therefore called non-renewable resources.

Flows are resources that require time to accumulate and are therefore called renewable resources. In contrast, stocks do not out run when used sustainably, and are therefore called non-renewable resources.

When investigating the ecological footprint of a nation, what is meant if a country has a deficit?

The ecological footprint of a nation exceeds the biocapacity of that nation.

The surplus of a nation is less than the ecological footprint of that nation.

The biocapacity of a nation is less than the surplus of that nation.

The surplus of a nation is greater than the deficit of that nation.

Image a situation in which a soil scientist, an ecologist, and a hydrologist collaborate to reach an understanding of the combined environmental impacts of deforestation, all working towards a common goal. What is this type of research referred to?

Disciplinary research

Multi-disciplinary research

Interdisciplinary research

Transdisciplinary research

Malthus foresaw a future where the population would exceed the amount of food available, and would then collapse into famine and war. This is referred to as a Malthusian catastrophe. Why has this not yet happened?

We are using more land for producing our food.

Due to technological advances, collectively called the green Revolution.

Due to the input of fossil fuels.

All of the options given are correct

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