Question

A mineral leaves a gray trail when scraped against an unglazed porcelain plate.

Which property of a mineral is being measured?

A.
luster

B.
streak

C.
color

D.
hardness

Answer 1

i think it is B

Answer 2

am i right?

Answer 3

Correct

Answer 4

can you help me with more

Answer 5

PLEASE

Answer 6

sure

Answer 7

thanks

Answer 8

A mineral breaks into flat sheets when struck with a rock hammer.

Which property of a mineral is being measured?

A.
cleavage

B.
streak

C.
hardness

D.
color

Answer 9

i think it is C am i right

Answer 10

yes

Answer 11

correct

Answer 12

http://dave.ucsc.edu/myrtreia/physical_character.html
take a look at this site, it's helpful

Answer 13

thanks can you help with 3 more questions

Answer 14

A mineral can be scratched with a nail, but not a copper penny.

Which property of a mineral is being measured?

A.
streak

B.
hardness

C.
color

D.
cleavage

Answer 15

sorry the previous one is cleavage

Answer 16

not hardness, u must use the moh's scale to determine the hardness of a mineral

Answer 17

i think it is B

Answer 18

that's correct, because the moh's scale is being used by scratching the mineral and see the ability of resistance and it determines the hardness of a mineral .

Answer 19

Which explains the greenhouse effect?

A.
Greenhouse gases like water vapor and carbon dioxide trap heat in the atmosphere, thereby radiating heat energy back into space.

B.
Greenhouse gases like water vapor and carbon dioxide trap heat in the atmosphere, thereby radiating heat energy back into space.

C.
Greenhouse gases like water vapor and carbon dioxide trap heat in the atmosphere, thereby radiating heat energy back to the surface.

D.
Greenhouse gases like water vapor and carbon dioxide release heat in the atmosphere, thereby radiating heat energy back into space.

Answer 20

d maybe or b

Answer 21

lets skip this question

Answer 22

shall we

Answer 23

can u help me with one question real quick

Answer 24

sure

Answer 25

im doing this winter package thing

Answer 26

ok is that your question

Answer 27

each body cell of a goldfish contains 94 chromosomes. how many chromosomes are contain in a gold fish sex cell? 23,47,94, or 188

Answer 28

my mom did that question yesterday she is a shrink

Answer 29

so do u know it

Answer 30

yes 47

Answer 31

thank u so much

Answer 32

your welcome

Answer 33

can you answer this

Which explains how root-tip wedging can weather a rock?

A.
In root-tip wedging, plant roots get into cracks and secrete water, which freezes and breaks apart the rocks.

B.
In root-tip wedging, plant roots get into cracks and secrete acids, which freeze and break apart the rocks.

C.
In root-tip wedging, dead material from plant roots breaks down into acids that get into cracks and dissolve the rocks.

D.
In root-tip wedging, plant roots get into cracks, grow, and break apart the rocks.

Answer 34

i think it is D am i right?

Answer 35

that was all my questions bye

Answer 36

its d