Answer:
1. Earth's temperature is maintained by re radiated infra red radiation by green green house gases and slightly by water vapors in atmosphere. These gases prevent heat from escaping to outer space, so are functionally comparable to glass panel of green house. Thus, this heating effect is referred to as green house effect. Carbon dioxide is a green house gas so increased amount of this gas in the atmosphere will result in increased atmospheric temperature and global warming.
2. Three sources of atmospheric carbon dioxide are:
- Volcanic eruption
- Respiration by plants and animals
- Decomposition of organic substance.
Explanation:
- <u>Overall rise in temperature </u>of the Earth due to excessive amount of green house gases in atmosphere that trap heat radiating from Earth's surface is called Global warming.
- Global warming can cause melting of ice caps, alteration of seasons, destruction of forest and increase in deserts.
- Green house gases include carbon dioxide, methane, ozone, nitrous oxide, and nitrogen dioxide etc.
- Among all these gases Carbon dioxide is the major component that is responsible for global warming.
- Carbon dioxide is added to the atmosphere by burning of fossil fuels, volcanic eruption and respiration. But Burning of fossil fuels itself adds about 18 X 10¹² tonnes of CO₂ anually.
- Global warming has become a major environmental concern now and needs to be controlled immediately.
Process A → Decaying / Decomposition
Process B → Nitrification
The root nodules are important in the nitrogen cycle as they help in intaking of nitrogen and other minerals like phosphorous, potassium, sodium etc. from the soil.
Hope it helps you
ribosomal rna i’m pretty sure
<span>When an overwhelming body of observations and measurements supports a scientific hypothesis or group of related hypotheses, it becomes a scientific theory. A scientific theory is defined as an explanation of an facet of the natural world that one can test repeatedly using defined protocols of observation and experimentation.</span>
The correct ordering of the steps in scientific research is given below:
- Research question
- Hypothesis
- Background research
- Controlled experiment
- Data collection
- Data analysis
- Conclusion
<h3>What are the steps in scientific research?</h3>
The steps in scientific research refer to the steps or procedures that are followed by scientists in making scientific discoveries that explain observed phenomena.
The steps in scientific research are as follows:
- Research question - this is the question that a scientist seeks to answer based on his/her observations
- Hypothesis - statements made by scientists to explain their observations
- Background research - research is done to find support for or against the hypothesis.
- Controlled experiment - tests carried out to disprove or prove the hypothesis
- Data collection
- Data analysis
- Conclusion
Learn more about scientific research at: brainly.com/question/17216882
#SPJ1
