4. For the mineral quartz, identity the following: Luster:
Hardness:
Breakage:
Color:
Composition:
5. For
the mineral galena, identity the following:
Luster:
Hardness:
Breakage:
Color:
Composition:
6. For
the mineral olivine, identity the following:
Luster:
Hardness:
Breakage:
Color:
Composition:
7. For
the mineral fluorite, identity the following:
Luster:
Hardness:
Breakage:
Color:
Composition:

One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

In a command economy, the majority of goods and services are provided by the