water cycle
carbon & nitrogen cycle
changes in ecosystems
biome characteristics
water ecosystems characteristics
100
the water droplets gather with dust particles and form what?
What is clouds?
100
what is the most important element in every living thing?
What is carbon?
100
what 5 natural disasters can drastically alter an ecosystem?
What is earthquakes,floods,storms,volcanoes,*droughts?
100
a desert is what or what kind of biome?
What is sandy or rocky
100
are freshwater and saltwater ecosystems organized in similar ways?
What is yes?
200
most of water will flow from rivers to what?
What is ocean?
200
what takes in carbon dioxide?
What is plants
200
what is the second type of natural changes is caused by what?
What is organisms?
200
A what is an average weather pattern for a region?
What is climate?
200
what is most of earths surface covered by?
What is water?
300
the water cycle is driven by the suns what?
What is energy?
300
where do cells get nitrogen?
What is the air?
300
once a species becomes what it no longer exist on earth?
What is instinct*
300
how many major land biomes are there?
What is 6?
300
what determines the type of organisms that can survive in water ecosystems?
What is biotic and abiotic factors?
400
the water cycle continues as precipitation falls back to the surface of what?
What is earth?
400
what percent of nitrogen gas is in the air?
What is 78 percent?
400
thousand of species are expected to become extinct when?
What is each year?
400
what are the 2 coldest biomes found in the northern hemisphere?
What is tundra and taiga?
400
how much sunlight is able to penetrate to the bottom of a body of water?
What is little?
500
excess evaporates out of the plants leaves through what?
What is transpiration?
500
animals and what burn carbon rich foods for fuel during cellular respiration?
What is plants?
500
Species with what could become extinct or threatened?
What is low numbers?
500
does a jungle in south america have anything in common with a tree filled park near your home?
What is yes both are examples of forest biomes ?
500
what acts like a sponge during storms to soak up excess water?
What is salt marshes?
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