GEO EXAM SEM 1

define land cover change

the alteration of the Earth’s surface from one type of cover to another due to natural processes or human activity. Example: native forest being cleared and replaced by agriculture, urban settlement or mining.

What is the memory line for land cover change?

Earth’s surface changes from one cover type to another.

Define anthropogenic biome.

a biome that has been significantly altered by human activity. Examples include croplands, rangelands, villages and urban settlements.

What is the memory line for anthropogenic biome?

Human-modified biome.

Define biodiversity loss.

the decline in the variety of living organisms, including species diversity, genetic diversity and ecosystem diversity. It can occur through extinction, habitat loss, invasive species, disease or environmental change.

What are the three types of biodiversity?

Species diversity, genetic diversity and ecosystem diversity.

What is the memory line for biodiversity loss?

Less variety of species, genes and ecosystems.

Define ecosystem structure.

refers to the living and non-living components of an ecosystem, including biotic elements, abiotic elements, food webs, biomass and trophic levels.

define ecosystem dynamics

refers to how the components of an ecosystem interact and change through flows of energy and matter.

What is the difference between ecosystem structure and ecosystem dynamics?

= what is in the ecosystem. = how the ecosystem works.

Define sustainability.

the ability to meet present needs without reducing the ability of future generations to meet their needs. It includes environmental, social and economic factors.

what are the three parts of sustainability

Environmental, social and economic sustainability.

Define environment.

is the surroundings in which people, plants, animals and other organisms live and interact. It includes both natural and human-made features.

What is the memory line for environment?

Surroundings where living things interact.