scientific methods & populations
what is environmental science?
what is a population?
environmental science is the study of physical, chemical, and biological parts of nature.
populations are numbers of the same species that live in a specific area.
1. what is evolution?
2) what is a food web?
3: how is a food web different from a food chain?
2) a system of food chains. 3: a food web is made up of food chains while food chains are not made up of food webs.
1. what are the 3 fossil fuels.
2. what does carrying capacity mean.
1. coal, oil, and natural gas.
2. the number of living organisms that a region can support without environmental degradation.
1. what are abiotic factors.
2. what are biotic factors.
1. non-living things in an ecosystem.
2. living organisms in an ecosystem.
what is global warming.
an increase of the earths average temperature.
what is a hypothesis and how are they important?
a hypothesis is the prediction of something based off of evidence, and its important to help with scientific experiments.
1. what is natural selection?
2. what is primary succession?
3. who is Charles Darwin?
1. the process in which organisms more used to their environment tend to live longer and produce more offspring.
2. newly created rock is colonized by living things for the first time.
3. Charles Darwin was the person who created the theory of evolution.
1. what is a developing country.
2. Is gasoline a renewable resource.
1. a country that has low income and is not economically advanced.
2. No
what does PH stand for and how is it used.
PH tells you how acidic something is from a scale of 0 to 14 the more the number the less acidic, the lower the more acidic. it is used to determine how acidic something is.
what is latitude?
an angle which ranges from 0° at the Equator to 90° (North or South) at each of the poles.
what are the three main symbiotic relationships?
parasitism, commensalism, and mutualism.
1. what is the 10% rule?
2. what is an energy pyramid?
1. when an organism is consumed by another organism of higher trophic level and 10% of the energy is passed to the consumer.
2. a representation to show the biomass at each level of the environment.
what is a carbon sink.
what is a developed country.
1. environments that can absorb a lot carbon dioxide from the atmosphere. (such as the sea)
2. a country that has high income and more economically advanced.
what is the carbon cycle.
a process in which carbon is put into an environment.
what is climate change?
a change in global climate patterns.
what is the difference between immigration and emigration.
immigration is when you join a new area to live, while emigration is when you leave your old area you lived.
what is photosynthesis?
the process in which green plants use the sunlight to create food from carbon dioxide and water.
1. what is a replacement level/rate?
2. what does total fertility rate mean?
1. the amount of children a woman will need to have to maintain her family's population level.
2. average number of children that would be born to a woman throughout her time alive.
what is evaporation.
the process of turning a liquid into a vapor.
what is the ozone layer?
a layer of the earths stratosphere that collects most of the ultraviolet radiation.
what is a niche?
the role an organism plays in its enviroment.
what is a producer and consumer.
producers are organisms that make their own food. consumers are organisms that eat other organisms.
(herbivores are a type of consumer that eats plants.)
(carnivores are animals that eat other animals.)
(omnivore's are organisms that eat both plants and animals.)
1. which of these are renewable resources.
geothermal energy, nuclear energy, wind energy, hydroelectrical energy, solar energy, and natural gas.
all are renewable except for natural gas.
what is the water cycle.
a series of processes by which water moves between the earth's oceans, atmosphere, and land and repeats itself causing it to create an endless cycle.
what is desertification?
a process in which land becomes desert after a drought or deforestation.