Answer:
C. mixture
Explanation:
A mixture is an impure substance. It has the following properties;
- It's composition is indefinite
- Their constituents retain their identities i.e. physical properties are retained
- Constituents react differently to changed conditions
- They can easily be separated into constituents by physical methods.
Granite is a rock. A rock is usually formed by a combination of different minerals.
Granite is made up of many compounds and so it is a mixture.
Answer:
what are the options??? to choose the answer from?
Explanation:
Answer:
I have no idea.
Explanation:
I just wanted to tell you I absolutely read this wrong.
The answer is:
B. <span>X: Work is done to the system and temperature increases.
Y: Work is done by the system and temperature decreases.</span>
"with the wind" is a tail-wind, and the speeds are added to get the groundspeed.
"against the wind" is a head-wind, and the windspeed is subtracted from the airspeed.
