Answer:
The polar nature of water make water universal solvent.
Explanation:
The polar nature of water is responsible for the versatility as a solvent because due to this polar nature of water maximum number of solutes or chemicals dissolved in it and it is also called universal solvent. Polar nature means making positive and negative polar which attracts the opposite charge atoms and making covalent bond with them. The hydrogen has partial positive charge so it attracts negative charge atom while oxygen has partial negative charge so it attracts positive charge atom.
- rock salt and gypsum: evaporation- dolostone: chemical replacement- chert and iron-rich formations: precipitation
Its the first one, the second one and the fourth one! I hope this helps
Answer:
The correct answer is C and Engelmann conducted this experiment to prove relationship between algae and the rate of photosynthesis.
Explanation: First we must talk about 3 facts:
1) Prism scatters the white light into different wavelengths.
2) Photosynthesis, 6 carbon dioxide and 6 water molecules are consumed and 6 oxygen and 1 sugar molecule is synthesized using light energy.
6CO2 + 6H2O → C6H12O6 + 6O2
3) Aerobic bacteria breaks down sugar while using oxygen and produces water and carbon dioxide in simplified terms.
So with this experimental setup a researcher can understand the rate of the photosynthesis by increased accumulation of aerobic bacteria near algae in certain wavelengths since they uses oxygen and tend to move close to the oxygen source (<u>see figure</u>). In this experiment there are no ways to measure heat (B), there is no known relation between wavelength of light and aerobic respiration since it can happen even in the dark (A) and finally there are no ways to measure carbon dioxide (D).
The answer is D. Water Framework Directive.