Base your answer to questions 8 through 11 on the following energy efficiencies. (A) 100%

(B) 60%

(C)35%

(D) 10%

(E) 1%

8. Approximate efficiency of today's nuclear power plants
A)D
B)A
C)E
D)C
E)B

9. Approximate efficiency of combined-cycle natural gas electric power plant
A)B
B)E
C)A
D)D
E)C

10.Approximate efficiency of the conversion of gasoline fuel into mechanical energy in a car A)B
B)D
C)C
D)A
E) E

11. The second law of thermodynamics prevents this efficiency from being possible
A)D
B)E
C)A
D)B
E)C

(It’s four questions, if someone could help me it would mean a lot because I’m really stuck and I’m freaking out.)

If you are talking about typical sand you would find at the beach or in a river bed here on earth, there are some differences. i would say the first biggest difference is in composition and mineral make up. although the moon is largely made of the same materials as earth’s mantle and surface, the moon experiences very little weathering (no liquid water and virtually no atmosphere). “earth” sand is typically composed mostly of quartz grains. this is because quartz is highly resistant to both physical and chemical weathering. most of the other minerals originally with the quartz are broken down into fine clay and carried away, chemically eroded/ dissolved, or some combination of the two. this usually leaves only the quartz behind, and so most of the time when you see/think of sand, you are talking about quartz. without these weathering mechanisms on the moon, the “sand” (which is likely more silt or clay sized grains anyways) would consist of mostly other minerals like anorthosite, olivine, and proxene.

: )

Their worse are not meaningful;

Be cautious dont go into an ally stay in public be at home have pepper spray