Water & Plant Cycles
Plants use carbon dioxide and release oxygen during this
What is photosynthesis?
A regular pattern of change
What is a cycle?
When an ecosystem receives less water than it needs, a _______ may occur.
What is a drought?
If a species population could become endangered in the near future, it is _______.
What is threatened?
Animals and people breathe in oxygen and breathe out carbon dioxide during this
What is respiration?
Photosynthesis and respiration are part of this cycle
What is the carbon cycle?
One benefit of floods is that they distribute fertile _________ and seeds.
What is soil?
Using resources and not wasting them is being a good ________ of God's creation.
What is a steward?
Plants also produce this during photosynthesis
What is sugar?
This is an important gas for living things to grow and function normally
What is nitrogen?
One way a forest fire can be beneficial to the ecosystem is that some forest fires can get ride of ________ trees.
What are dead?
The gradual changes in the populations of an ecosystem
What is succession?
The energy for plants to make food come from this
What is the sun?
Most nitrogen is changed into usable compounds by this
What is bacteria?
Some manmade stresses are habitat destruction, _______ and excessive hunting and fishing.
What is pollution?
Plant and animal species that originally live in an ecosystem
What is a native species?
Water changing from liquid water to water vapor is this
What is evaporation?
Condensation, evaporation, precipitation and transpiration are part of this cycle?
What is the water cycle?
Some seeds only ______ after a forest fire.
What is sprout?
The process of water vapor changing to a liquid
What is condensation?