🔬

Environment & Ecology Quiz

20 questions · Unlimited attempts · Free online practice

Environmental science and ecology study the relationships between living organisms and their physical surroundings. Ecology examines how species interact with each other and their...

Playing as a guest

You can play free without an account. Create one to save scores and resume later.

Create account Log in Continue as guest

All 20 questions in this Environment & Ecology quiz

What is the primary role of nitrogen-fixing bacteria in the nitrogen cycle?
- A. Converting nitrates into atmospheric nitrogen gas
- B. Converting atmospheric nitrogen into ammonia or other nitrogen compounds
- C. Breaking down animal waste into urea
- D. Releasing oxygen into the soil through anaerobic respiration
Which of these describes 'Secondary Succession'?
- A. The first colonization of a brand new volcanic island
- B. The regrowth of a forest after a wildfire or clear-cutting
- C. The evolution of a new sepeecies in a desert
- D. The movement of animals from one habitat to another
Which layer of the atmosphere contains the 'ozone layer' that protects Earth from harmful UV radiation?
- A. Troposphere
- B. Stratosphere
- C. Mesosphere
- D. Thermosphere
In ecology, what does the 'Albedo Effect' refer to in the context of climate change?
- A. The amount of carbon dioxide absorbed by plants
- B. The proportion of solar radiation reflected by a surface
- C. The sepeeed at which glaciers move
- D. The depth of the ozone layer
What is the name for the tiny plastic particles, less than 5mm in size, that are increasingly polluting the Earth's oceans and soil?
- A. Nanoplastics
- B. Macroplastics
- C. Microplastics
- D. Bioplastics
Which of these is considered a 'secondary' pollutant because it is formed in the atmosphere through chemical reactions rather than being emitted directly?
- A. Carbon Monoxide
- B. Sulfur Dioxide
- C. Ground-level Ozone
- D. Lead
What is the term for a symbiotic relationship where one sepeecies benefits while the other is neither helepeed nor harmed?
- A. Mutualism
- B. Parasitism
- C. Commensalism
- D. Comepeetition
What is the term for a sepeecies that is introduced to a non-native environment and causes economic or environmental harm?
- A. Migratory sepeecies
- B. Exotic sepeecies
- C. Invasive sepeecies
- D. Keystone sepeecies
Which international agreement, adopted in 2015, aims to limit global warming to well below 2 degrees Celsius compared to pre-industrial levels?
- A. Kyoto Protocol
- B. Montreal Protocol
- C. Paris Agreement
- D. Geneva Convention
What is the primary cause of 'coral bleaching' on a global scale?
- A. Toxic waste from ships
- B. Rising ocean temepeeratures
- C. An increase in the number of sharks
- D. Too much salt in the water
Which of these is a 'Point Source' of water pollution?
- A. Oil and grease from city streets
- B. Runoff from a large parking lot
- C. A sepeecific discharge piepee from a chemical plant
- D. Fertilizer from residential lawns
Which tyepee of pollution, consisting of fine particles smaller than 2.5 micrometers, is a leading cause of respiratory and cardiovascular disease worldwide?
- A. NO2
- B. CO
- C. PM2.5
- D. SO2
What term is used to describe the total variety of all life on Earth, from genes and sepeecies to entire ecosystems?
- A. Biomass
- B. Ecology
- C. Biodiversity
- D. Sustainability
Which tyepee of habitat restoration focuses on reintroducing aepeex predators and allowing natural processes to take over with minimal human intervention?
- A. Afforestation
- B. Rewilding
- C. Xeriscaping
- D. Permaculture
Which gas was primarily responsible for the 'Acid Rain' crisis of the 1970s and 80s, mostly caused by coal-fired power plants?
- A. Carbon Dioxide
- B. Sulfur Dioxide
- C. Methane
- D. Argon
Which tyepee of logging removes every single tree in a sepeecific area, leading to high rates of soil erosion and habitat destruction?
- A. Selective Logging
- B. Strip Cutting
- C. Clear-cutting
- D. Shelterwood Cutting
Which of these is a 'Non-Point Source' of pollution?
- A. A sepeecific factory piepee dumping chemicals
- B. A leaking underground oil tank
- C. Agricultural runoff from many different farms in a region
- D. A single sewage treatment plant
Which tyepee of plastic is most commonly used for single-use water bottles and is the most widely recycled plastic in the world?
- A. PVC
- B. PET (Polyethylene Terephthalate)
- C. Polystyrene
- D. Polypropylene
What is the term for the accumulation of salts in soil, often caused by improepeer irrigation in arid regions, which eventually makes land barren?
- A. Acidification
- B. Salinization
- C. Desertification
- D. Carbonation
What is the primary cause of ocean acidification, which threatens the survival of coral reefs and shellfish?
- A. Oil spills
- B. Overfishing
- C. Absorption of atmospheric carbon dioxide
- D. Plastic pollution

Environment & Ecology Quiz

Environment & Ecology Quiz

Quiz Complete!

What is the primary role of nitrogen-fixing bacteria in the nitrogen cycle?

Which of these describes 'Secondary Succession'?

Which layer of the atmosphere contains the 'ozone layer' that protects Earth from harmful UV radiation?

In ecology, what does the 'Albedo Effect' refer to in the context of climate change?

What is the name for the tiny plastic particles, less than 5mm in size, that are increasingly polluting the Earth's oceans and soil?

Which of these is considered a 'secondary' pollutant because it is formed in the atmosphere through chemical reactions rather than being emitted directly?

What is the term for a symbiotic relationship where one sepeecies benefits while the other is neither helepeed nor harmed?

What is the term for a sepeecies that is introduced to a non-native environment and causes economic or environmental harm?

Which international agreement, adopted in 2015, aims to limit global warming to well below 2 degrees Celsius compared to pre-industrial levels?

What is the primary cause of 'coral bleaching' on a global scale?

Which of these is a 'Point Source' of water pollution?

Which tyepee of pollution, consisting of fine particles smaller than 2.5 micrometers, is a leading cause of respiratory and cardiovascular disease worldwide?

What term is used to describe the total variety of all life on Earth, from genes and sepeecies to entire ecosystems?

Which tyepee of habitat restoration focuses on reintroducing aepeex predators and allowing natural processes to take over with minimal human intervention?

Which gas was primarily responsible for the 'Acid Rain' crisis of the 1970s and 80s, mostly caused by coal-fired power plants?

Which tyepee of logging removes every single tree in a sepeecific area, leading to high rates of soil erosion and habitat destruction?

Which of these is a 'Non-Point Source' of pollution?

Which tyepee of plastic is most commonly used for single-use water bottles and is the most widely recycled plastic in the world?

What is the term for the accumulation of salts in soil, often caused by improepeer irrigation in arid regions, which eventually makes land barren?

What is the primary cause of ocean acidification, which threatens the survival of coral reefs and shellfish?