Nitrogen (around 78%), Oxygen (around 21%), and Argon (around 1%).
Hope this helps :)
<u>Answer:</u> The correct answer is Option 4.
<u>Explanation:</u>
Bromothymol blue, Bromocresol green and Thymol blue are the indicators which change their color according to the change in pH of the solution.
The pH range and color change of these indicators are:
- Bromothymol Blue: The pH range for this indicator is 6.0 to 7.5 and color change is from yellow to blue. It appears yellow below pH 6.0 and blue above pH 7.5
- Bromocresol green: The pH range for this indicator is 3.5 to 6.0 and color change is from yellow to blue. It appears yellow below pH 3.5 and blue above pH 6.0
- Thymol Blue: The pH range for this indicator is 8.0 to 9.6 and color change is from yellow to blue. It appears yellow below pH 8.0 and blue above pH 9.6
As, the highest pH of all the indicators is 9.6, so every indicator will appear blue above pH 9.6.
Hence, the correct answer is Option 4.
Wind isn’t an external force that acts in the rock cycle.
Answer:
color
Explanation:
Scientists can use the color of minerals to tell them apart.
Answer:
the process in which energy is emitted by one object, transmitted through space, and absorbed by another
Explanation:
Radiation is energy that comes from a source and travels through space and may be able to penetrate various materials. Light, radio, and microwaves are
types of radiation that are called nonionizing.
