Unit 1: Ecology
This type of consumer chemically breaks down organic matter...
What are decomposers?
In this era of Earth, primordial seas gave rise to life and single celled organisms.
What is the Precambrian Era?
What is 3.5%?
The atmosphere is composed of these four gases.
What are nitrogen, oxygen, argon, and carbon dioxide?
Climate is the expected weather conditions in a region and must be determined by observing the weather for at least this long.
What is 30 or more years?
This process occurs when bacteria converts N2 gas into ammonia which is a form that is used by plants.
What is nitrogen fixation?
This layer of Earth's interior is made of molten rock and allows tectonic plates to move on top of it.
What is the asthenosphere?
These are the three main uses of freshwater.
What are residential, agriculture, and industrial?
This layer of the atmosphere is where the ozone layer is located.
What is the stratosphere?
Volcanic eruptions, ocean currents, Earth's orbital changes, and solar variations affect this natural process.
What is natural climate change?
This type of succession occurs after a natural disaster like a hurricane and the soil remains.
What is secondary succession?
The ocean floor expands laterally via this kind of plate boundary.
What are divergent plate boundaries?
This term means safe to drink.
What is potable?
More skin cancer, eye problems, severe sunburns, and weaker immune responses would be due to a decrease in this gas.
What is ozone?
The average increase in temperature due to human activity is called this.
What is global warming?
When a population grows logistically, it has this amount of resources.
What is limited resources?
Contour plowing, trees, terracing, and no till agriculture are all ways to prevent this natural process.
What is soil erosion?
The oil rig explosion that occurred in the Gulf of Mexico several years ago is an example of this kind of water pollution source.
What is point-source?
When heat gets trapped near the surface, this has occurred.
What is thermal inversion?
Global climate change encompasses this and this.
What are global warming and natural causes?
This kind of relationship occurs between bees and flowers.
What is mutalistic?
These are the three types of weathering.
What are chemical, mechanical, and biological?
When excess phosphorus is dumped into a lake an causes an explosion of algae growth, this occurs due to this process.
What is artificial eutrophication?
When buildings have very poor air quality, they have this syndrome.
What is sick-building syndrome?
Carbon dioxide, methane, nitrous oxide, and CFCs are all examples of these.
What are greenhouse gases?
The primary producer in a food chain has 250,000 cal of energy. The tertiary consumer in this food chain would gain this amount of energy.
What is 250 cal?
This formation of tectonic plates in the Pacific Ocean has a common name because of how many active volcanoes.
What is the Ring of Fire?
The fire on the Cuyahoga River in Cleveland was the major factor in the passage of this Act.
What is the Clean Water Act of 1972
When excess carbon dioxide, sulfur dioxide, or nitrogen oxides enter the atmosphere, this kind of precipitation can occur.
What is acid rain?
What are introduction of invasive species, pollution, and global climate change.