enviro exam
🇬🇧
In English
In English
Practice Known Questions
Stay up to date with your due questions
Complete 5 questions to enable practice
Exams
Exam: Test your skills
Test your skills in exam mode
Learn New Questions
Popular in this course
Learn with flashcards
Manual Mode [BETA]
Select your own question and answer types
Other available modes
Complete the sentence
Listening & SpellingSpelling: Type what you hear
multiple choiceMultiple choice mode
SpeakingAnswer with voice
Speaking & ListeningPractice pronunciation
TypingTyping only mode
enviro exam - Leaderboard
enviro exam - Details
Levels:
Questions:
152 questions
| 🇬🇧 | 🇬🇧 |
| Population density | The number of people in a given area, usually in 1000km |
| Economic water scarcity | A situation in which there is enough water available, but the money does not exist to extract and/or treat enough of it for human needs |
| Where do cold currents come from | North or South Pole |
| Population distribution | Where populations of people either do or do not live |
| Economic water scarcity | A situation in which there is enough water available, but the money does not exist to extract and/or treat enough of it for human needs |
| Where do cold currents come from | North or South Pole |
| Lag phase | The period in population growth when an organism is adapting to its new environment and growth is slow |
| Economic water scarcity | A situation in which there is enough water available, but the money does not exist to extract and/or treat enough of it for human needs |
| Where do cold currents come from | North or South Pole |
| Log (exponential) phase | When the growth rate of a population increases rapidly over time |
| How to prevent cholera | Good sanitation – sewage and water treatment processes in place, good hygiene and cooking of food, boiling and chlorination of contaminated water. |
| Where do cold currents come from | North or South Pole |
| Carrying capacity | The maximum size of a population that an environment can support in terms of food, water and other resources |
| How to prevent cholera | Good sanitation – sewage and water treatment processes in place, good hygiene and cooking of food, boiling and chlorination of contaminated water. |
| Where do cold currents come from | North or South Pole |
| Birth rate | The total number of live births over time |
| How to prevent cholera | Good sanitation – sewage and water treatment processes in place, good hygiene and cooking of food, boiling and chlorination of contaminated water. |
| Where do cold currents come from | North or South Pole |
| Death rate | The total number of deaths over time |
| How to prevent cholera | Good sanitation – sewage and water treatment processes in place, good hygiene and cooking of food, boiling and chlorination of contaminated water. |
| Where do cold currents come from | North or South Pole |
| Factors affecting birth rate and death rate | Lack of access to birth control, availability to medicine, farming communities in LEDC's need a bigger family for farm work |
| NA | NA |
| Where do cold currents come from | North or South Pole |
| Factors affecting migration | Weather events, poverty, famine |
| How to prevent cholera | Good sanitation – sewage and water treatment processes in place, good hygiene and cooking of food, boiling and chlorination of contaminated water. |
| Where do cold currents come from | North or South Pole |
| Ways to manage population size | Family planning, improved health & education, national population policies |
| How to prevent cholera | Good sanitation – sewage and water treatment processes in place, good hygiene and cooking of food, boiling and chlorination of contaminated water. |
| Where do cold currents come from | North or South Pole |
| Pronatalist | A national or regional policy that aims to encourage couples to have children |
| How to prevent cholera | Good sanitation – sewage and water treatment processes in place, good hygiene and cooking of food, boiling and chlorination of contaminated water. |
| Where do cold currents come from | North or South Pole |
| Antinatalist | A national or regional policy that aims to discourage couples from having children |
| How to prevent cholera | Good sanitation – sewage and water treatment processes in place, good hygiene and cooking of food, boiling and chlorination of contaminated water. |
| Where do cold currents come from | North or South Pole |
| Ecosystem | All the living things (biotic components) together with all the non-living things (abiotic components) in an area |
| How to prevent cholera | Good sanitation – sewage and water treatment processes in place, good hygiene and cooking of food, boiling and chlorination of contaminated water. |
| Population | All the organisms of one species living in a defined area |
| How to prevent cholera | Good sanitation – sewage and water treatment processes in place, good hygiene and cooking of food, boiling and chlorination of contaminated water. |
| Community | A group of populations of different species that live together in an area and interact with each other |
| How to prevent cholera | Good sanitation – sewage and water treatment processes in place, good hygiene and cooking of food, boiling and chlorination of contaminated water. |
| Habitat | The place within an ecosystem where an organism lives |
| Niche | The role of a species within the ecosystem |
| Biotic | Living components of the environment that may affect other living things |
| Biotic components examples | Producers, primary, secondary, tertiary consumers, decomposers |
| Abiotic | Non-living components of the environment that may affect other living things |
| Abiotic components | Temperature, humidity, water, oxygen, salinity, light, pH |
| Predation | When one organism eats another with usually the larger being the predator |
| Pollination | Is the transfer of pollen from a male anther to the female stigma of a flower |
| Competition | For the resources available (light, food, space, mates) occurs between different species and within a population of a species |
| Role of chlorophyll | Absorb sunlight used for photosynthesis |
| Word equation for photosynthesis | Glucose + oxygen → carbon dioxide + water |
| Causes of habitat loss | Drainage of wetlands, intensive agriculture practices, deforestation |
| Impacts of habitat loss | Extinction, loss of diversity and genetic depletion |
| Genetic depletion | The loss of species containing potentially useful genes |
| Biodiversity | The variety of plant and animal life in the world or in a particular habitat, a high level of which is usually considered to be important and desirable |
| Causes of deforestation | Timber extraction and logging, subsistence and commercial farming, roads and settlements, rock, mineral extraction |
| Role of forests within the water cycle | Forests add water to the atmosphere in the process of respiration. This leads to the formation of clouds. Eventually the clouds release the water back as precipitation |
| Role of forests with carbon sinks and carbon stores | A vegetated area where the intake of carbon dioxide from the atmosphere in photosynthesis exceeds its output from respiration, so the net flow of carbon is from the atmosphere into plants. |
| Ways of estimating biodiversity | Pitfall traps, pooters, quadrats and transects |
| What is a quadrat | A frame of known area used to sample organisms that do not move, such as plants. It is used to measure abundance by recording: the number of an individual species |
| What is a pitfall trap | A pitfall trap consists of a jar sunk up to its rim in the soil. The top may or may not be covered, depending on the predicted likelihood of rainfall. |
| What is a pooter | A simple piece of equipment for getting the animals out of the net and into a specimen container |
| Strategies for conserving biodiversity and genetic resources | National parks, ecological reserves, extractive reserves, world biosphere reserves, seed banks, role of zoos, captive breeding, sustainable tourism, ecotourism |
| National parks | National parks are areas created by the government where wildlife is protected by certain laws. This makes a safe space for animals to have their habitats and to reproduce. |
| Ecological reserves | National parks and ecological reserves differ only in size with ecological reserves being generally being smaller. |
| Extractive reserves | Extraction reserves are things that attempt to find a balance between destroying the forest for short-term benefits and stopping all economic activity |
| Seed banks | A seed bank is a place where seeds are stored to preserve genetic diversity for the future. |
| Role of zoos and captive breeding | They are good at providing education about the illegal trading in animals and products |
| Sustainable tourism | Sustainable tourism is very important because it brings in income which can be reinvested into a reserve, measures can be taken to protect the environment from tourists, some of these can be rules or laws set by government officials or owners of the land if there are any |
| Ecotourism | A form of sustainable tourism, it is guided by environmental tourism. Some examples of ecotourism would be camping, hiking, and wildlife viewing. |
| Percent of fresh water and percent that is available for drinking | 3 percent of fresh water on earth and 1 percent of that is available for drinking, the other percent is locked up in glaciers, icecaps etc |
| Precipitation | The process in which liquid water (as rain) or ice particles (as snow or hail) fall to Earth due to gravity |
| Surface run-off | The process by which water runs over the ground into rivers |
| Interception | The process in which precipitation is stopped from reaching the ground surface by the presence of trees and other plans |
| Infiltration | The process by which water seeps into the ground |
| Groundwater flow | The process by which infiltrated water flows through rocks |
| Through flow | The process by which infiltrated water flows through soil |
| Transpiration | The movement of water up plants and its subsequent loss as water vapour from their leaves |
| Evaporation | The process in which liquid water turns into vapor, the opposite of condensation |
| Condensation | The process in which water vapour turns into liquid water, the opposite of evaporation |
| Water cycle | Water cycle |
| Domestic use of water examples | Drinking, washing dishes, showering, cooking, flushing the toilet |
| Industrial use of water examples | Cooling down equipment, manufacturing products |
| Agriculture use of water examples | Crops, animals drinking water |
| Aquifer | Water stored in porous rocks underneath the ground |
| Well | A hole bored or dug into rock to reach the water stored there |
| Reservoir | An artificial lake where water can be stored |
| Desalination | Removal of salt from sea water to make it potable |
| Physical water scarcity | A situation where there physically not enough water for human needs |
| Economic water scarcity | A situation in which there is enough water available, but the money does not exist to extract and/or treat enough of it for human needs |
| Sanitation systems | Ensure that dirty water does not mix with water intended for human use |
| Water-treatment processes | Ensure that the water supplied to people is safe to drink |
| Environmental advantages for dams | Creation of habitat for wetland species, irrigation, flood control |
| Environmental disadvantages for dams | Disrupting the life cycles of fish and ither aquatic organisms |
| Economical advantages for dams | Provision of water, access by boat to otherwise inaccessible areas |
| Economical disadvantages for dams | Flooding land |
| Social advantages for dams | Tourism and leisure |