Answer: By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.
Explanation:
Answer:
nutrients are recycled, but energy is not
Explanation:
In the flow of energy, the sun represents the maximum source of energy and this energy is converted into other forms, a transformation process where energy is not recycled but transformed into other forms. Already the flow of nutrients in an ecosystem occurs through biochemical cycles, where nutrients are used and recycled to be reused.
Answer and Explanation:
There are various processes that are part of the water cycle:
- Precipitation: any kind of product that falls from the clouds
- Condensation: when a gas turns into a liquid
- Evaporation: when a liquid turns into a gas
- Transpiration: the evaporation of water from plants' leaves
- Runoff: the water that drains down from a source
Hope this helps!
False.
Any time a scientific theory is challenged, it means it's not a good
theory. And this statement is not valid. In theoretical models, they are
revisited when there are further studies and discoveries found in a certain
area where they can be remodeled and reintegrated instead of disregarding its
credibility. Models, theories and paradigms are not challenged but rather
encouraged, they are supported in many studies since these theories and models
were created in order for us to understand a certain phenomenon but it would
likely help the scientific society to be updated in the new forms or spheres of
improvement rather than discouragement.
