The three changes of state during which energy is absorbed are:
1. Change from solid to liquid - Melting.
2. Change from liquid to gas - Vaporization
3. Change from solid to gas - Sublimation
All these changes of state require heat energy to break the attractive forces that hold the particles of the molecules together, so that they can move into more disorderly states. For instance, when heat is applied to a solid, the solid absorbs the heat and use it to break the attractive forces that are holding the molecules of the solid together. At a particular temperature, the attractive forces will be completely overcome and the solid framework will collapse, thus leading to the melting of the solid.
When using a dichotomous key you look for the QUALITATIVE and QUANTITATIVE attributes of your specimen. Qualitative meaning the simple appearance such as color or the size. Quantitative meaning height, wings or no wings, tail or no tail, etc.
Hope this helps
Explanation:
mitochondria, using oxygen available within the cell convert chemical energy from food in the cell to energy in a form usable to the host cell. Nadh is then used by enzymes embedded in the mitochondria inner membrane to generate a triphosphate ATP in ATP the energy is stored in the form of chemical bonds.
<u>Answer:</u>
Collection of data is the part of an observational study.
Option: (c)
<u>Explanation:</u>
- Observational study is the non-experimental research that is usually used in the investigation of certain effects that is due to the treatment.
- The observational study is qualitative study. The major part of the observational study is to collect data and analyze it properly.
- It is used in many fields like sociology, psychology and statistical aspects.
- Mainly there are three types of observational study: cross-sectional, case-control and cohort study.
Auroras occur in the <u>"thermosphere".</u>
The thermosphere lies between the exosphere and the mesosphere.It is a district of expanding temperature in Earth's climate that is situated over the mesosphere.
The thermosphere significantly helps in ensuring the earth and making space investigation and present day types of correspondence conceivable. It additionally supports and ensures life on the planet. It reuses water, retains the sun's energy, and makes a moderate temperature.
The aurora (Northern Lights and Southern Lights) generally present in the thermosphere. It is a natural electrical marvel described by the presence of streamers of rosy or greenish light in the sky, particularly close to the northern or southern attractive shaft. The impact is caused by the communication of charged particles from the sun with iotas in the upper atmosphere.
