Topic #1
Seventy-eight percent of Earth's atmosphere is made of...
nitrogen
Most of the energy consumed in the U.S. is used for
B.industrial purposes
list four things you need to survive in the wilderness.
shelter,water,food,and companion
define human sustainability?
is the condition in which humans needs are met in such ways that human.
Which of the following statements is not true of consumers?
What is they make their own food.
The stratosphere is the atmospheric layer above the
Troposphere
From producers to secondary consumers about what percent of energy is lost as heat?
A.10%
Define dam.
A structure that is built across a river to control a river's flow.
the part of the earth that contains the air we breathe
atmosphere
why can't photosynthesis occur in deep ocean water?
there is no sunlight
what is the term for the area where organisms live together with their physical environment?
Ecosystem
The season in the northern hemisphere where carbon dioxide in the atmosphere decreases as a result of natural processes is ______________.
summer
With respect to matter, Earth is mostly
What is A closed system.
where is most of Earth's fresh water found
polar ice caps
what is an example of an abiotic factor?
rock
The action allowing individuals to affect environmental policy at all levels of government is ___________________.
What is an ecosystem?
A community of organisms and their abiotic enviroment
why can't photosynthesis occur in deep ocean water?
there no sunlight
what are three types of consumers
herbivores, carnivores, and omnnivores
One of the steps in a food chain or food pyramid is called ____________. Examples include primary, secondary, and tertiary consumers.
trophic level