Your browser does not support JavaScript!
AMA University Answers
Login Register

Environmental Science

Showing 1-75 of 269 answers

"Everything affects everything else".
  • environmental unity Correct
  • uniformitarianism
  • Gaia hypothesis
  • feedback
A condition where the carrying capacity is reached and overtaken before the population is reduced drastically.
  • overshoot and collapse Correct
  • overshoot and decline
  • saturation and reduction
  • increase and collapse
A couple with multiple cars and houses may not be living sustainably.
  • True Correct
  • False
A high rate of transfer will affect a small lake in what way?
  • It will have a short residence time and will therefore be more vulnerable to change and pollutants Correct
  • It will have a long residence time and will therefore be less vulnerable to change and pollutants
  • It will have a long residence time and will therefore be more vulnerable to change and pollutants
  • It will have a short residence time and will therefore be less vulnerable to change and pollutants
A positive exponential curve stabilizing at or near a carrying capacity (often S-shaped).
  • saturation curve
  • logistic curve Correct
  • exponential
  • linear
A rapid population growth has 1.5-3% population growth rate.
  • True Correct
  • False
A type of science wherein a research may not support certain hypothesis but some may merge with the existing science.
  • environmental science
  • fringe science
  • pseudoscience
  • frontier science Correct
A type of system response wherein the amount of anything added to a system is expected to produce the same amount of change.
  • saturation curve
  • linear Correct
  • logistic curve
  • exponential
According to science, no population can grow indefinitely.
  • True Correct
  • False
According to scientific evidences, climate change is global and is caused by human activities.
  • True Correct
  • False
According to the theory of island biogeography, the farther islands from the mainland will have fewer numbers of species.
  • True Correct
  • False
Agriculture has made it possible for civilizations to increase their population and advance their societies.
  • True Correct
  • False
Agriculture has significantly influenced our environment.
  • True Correct
  • False
Agriculture is an evidence of human attempt to overcome environmental limitations and problems.
  • True Correct
  • False
Air pollution has no political boundaries.
  • True Correct
  • False
Air pollution, disease, crime, discomfort and traffic are examples
  • Negative feedback Correct
  • Open system
  • Positive feedback
  • Closed system
Among crude oil, wind, coal, nuclear energy, biomass, which types of energy are renewable?
  • Crude oil, coal, biomass
  • Crude oil, nuclear energy, biomass
  • Crude oil, wind, coal, biomass
  • Wind, biomass Correct
An increase in population due to more jobs, better health care, social services and higher standards of living are examples of
  • Negative feedback
  • Positive feedback Correct
  • Closed system
  • Open system
An unpaved road can become a source of air pollution. What type of air pollution source is this?
  • Primary source
  • Fugitive source Correct
  • Point source
  • Area source
Animals and plants in the same biome are genetically similar.
  • True
  • False Correct
Anyone can be an environmentalist but not everyone can be an environmental scientist.
  • True Correct
  • False
At the current rate, there will be more people living in cities rather than in rural areas in the near future.
  • True Correct
  • False
Based on the Roman-numbered items listed below, which are advantages of living in cities?I. Cities are economic centers.II. Cities provide better education options.III. Cities experience urban heat island effect.IV. Cities are prone to water and pollution problems.  
  • All of the above
  • I and II Correct
  • III and IV
  • II and III
Based on your knowledge of air pollution, Mumbai, Dhaka and Manila will most likely suffer from air pollution.
  • True Correct
  • False
Between River A (3 species with 20 individuals each) and River B (5 species with 15 individuals each), River A will likely have the higher biodiversity.
  • True
  • False Correct
Biodiversity is greatly influenced by climate.
  • True Correct
  • False
Biodiversity is simply defined as the variety of life on earth.
  • True Correct
  • False
Biodiversity is the summation of speciation and extinction and hence, is a function of the two factors.
  • True
  • False Correct
Biological evolution occurs when there is a change in the inherited characteristics of a population from generation to generation.
  • True Correct
  • False
Biological invasion is good for fish supplies.
  • True
  • False Correct
Burning of fossil fuels may cause acid rain.
  • True Correct
  • False
Climate variations can also be attributed to natural cycles such as the Milankovitch cycle.
  • True Correct
  • False
Critics of GM crops have argued that GM crops are not a threat to the environment.
  • True
  • False Correct
Cultural carrying capacity is:
  • the maximum number of people that the earth can support without impairing the planet's ability to provide services in the future Correct
  • the maximum number of people that the earth can support without regard to the planet's future ability to provide services
  • the maximum number of people that the earth can support without the use of technology and food-enhancing methods
  • the maximum number of people that can live on earth
Describe the influence of biotechnology on food production.
  • it has increased food production by improving quality and reducing cost Correct
  • it has decreased food production due to genetically modified crops
  • it has increased food production by increasing production cost
  • it has decreased food production by increasing the cost of production
Deserts, grasslands, and rainforests are types of biotic provinces.
  • True
  • False Correct
Earth's atmosphere is heterogeneous.
  • True Correct
  • False
Ecosystem diversity is measured through the variety in ecological functions (eg. energy flow and matter cycling)
  • True
  • False Correct
Ecosystems support all forms of life
  • Dynamic equilibrium Correct
  • Steady-state equilibrium
  • Closed systems
  • Open systems
Energy is neither created or destroyed, it is:
  • Lost
  • Stays the same
  • Converted Correct
  • Made
Energy that is gathered from resources that can be replenished naturally on a human timescale.
  • Replenished energy
  • Renewable energy Correct
  • Sustainable energy
  • Non-renewable energy
Energy that is produced from natural, renewable sources. It does not run out.
  • Renewable energy
  • Non-renewable energy
  • Sustainable energy Correct
  • Replenished energy
Energy that is replenished at the human timescale
  • Sustainable energy
  • Stored energy
  • Renewable energy Correct
  • Non-renewable energy
Environmental science is an interdisciplinary field which integrates both physical sciences and social sciences.
  • True Correct
  • False
Examples of soil problems are soil erosion, soil compaction and desertification.
  • True Correct
  • False
Factors that increase biodiversity are:
  • Physically diverse habitat, small variation in environmental conditions, introduction of exotic species
  • Moderate amount of disturbance, geographic isolation, evolution
  • Physically diverse habitat, moderate amounts of disturbance, evolution Correct
  • Small variation in environmental conditions, high diversity at one trophic level, environmental stress
Generally, it is cheaper to consume non-renewable resources such as crude oil and coal rather than invest in technology for renewable resources.
  • True Correct
  • False
Geothermal energy is harnessed by boiling water in Earth's heat and letting turbines to capture the energy.
  • True Correct
  • False
Geothermal energy uses the heat coming from earth to produce electricity and does not need turbines such as those of wind and hydropower.
  • True
  • False Correct
Give an example of a freshwater reservoir.
  • Rivers, Ice sheets, permafrost Correct
  • Thermocline
  • Permafrost
  • Saltwater
Give an example of a saltwater reservoir.
  • Philippine Clean Water Act of 2004
  • Rivers, Ice sheets, permafrost
  • Oceans and bays Correct
  • Permafrost
Global warming is a natural phenomenon that makes the Earth habitable for humans.
  • True Correct
  • False
Groundwater is considered as a renewable resource that is being consumed faster than it can be replenished.
  • True Correct
  • False
Habitat complexity is favorable since it allows competitor species to coexist with each other.
  • True Correct
  • False
Having fewer children contributes to sustainability.
  • True Correct
  • False
How can people live sustainably?
  • Rely more on solar energy
  • Prevent disruption of natural chemical cycles
  • Protect and advocate for biodiversity
  • All of the above Correct
How many species of plants have provided for the majority of the world's food needs?
  • 15
  • 13
  • 16
  • 14 Correct
How will you describe the human population growth?
  • True Correct
  • False
Humans are capable of living without relying on the environment.
  • True
  • False Correct
Hydropower, same as with wind energy, is not a product of solar energy.
  • True
  • False Correct
Identify the type of growth for the given graph. 
  • exponential Correct
  • oscillating
  • linear
  • logistic
If Mayon Volcano erupts, business will be as usual for airplanes and air traffic located near the volcano.
  • True
  • False Correct
If the glaciers in Antarctica and Greenland would melt, sea level could increase significantly.
  • True Correct
  • False
If the source of energy can be replenished within the human timescale, then it is considered as a renewable energy source.
  • True Correct
  • False
In cities with heavy traffic, photochemical smog may form under sunlight.
  • True Correct
  • False
In Laguna de Bay, the biggest contributor of waste comes from households. What type of waste is this?
  • industrial solid waste
  • agricultural waste
  • mining waste
  • municipal waste Correct
In the Philippines, Amihan monsoon occurs during May to October.
  • True
  • False Correct
Infant mortality is the number of infant deaths every 100 babies before their first birthday.
  • True
  • False Correct
It is a community of organisms living in their physical environment.
  • food web
  • ecosystem Correct
  • ecological community
  • ecology
It is a condition caused by a lack of protein and calories.
  • Malnutrition
  • Undernourishment Correct
  • Kwashiorkor
  • Agriculture
It is a condition caused by deficiencies in some chemical components.
  • Malnutrition Correct
  • Kwashiorkor
  • Undernourishment
  • Agriculture
It is a field of technology making products applying concepts of life.
  • Pests
  • Biotechnology Correct
  • Nematodes
  • Soil Erosion
It is a kind of static system wherein the system is in a constant condition.
  • System responses
  • Closed system
  • Equilibrium
  • Classical stability Correct
It is a region inhabited by a characteristic set of taxa bounded by barriers that prevent the spread of those distinctive kinds of life to other regions and immigration of foreign species.
  • Biome
  • Biogeography
  • Geology
  • Biotic province Correct
It is a region where water flows through rivers, groundwater, streams, creeks into larger bodies of water.
  • Shoal
  • Watershed Correct
  • Erosion
  • Equilibrium
All courses