Earth Sciences & Geology (Science & Mathematics)

I am really new to this stuff! I see that the general form is (hkl). What I don't comprehend is how this relates to this:
A1-0=a=a/h
B2-0=2b=b/k
C2-0=2c=c/l

( note the 1 & 2's next to A,B &C are subscripts)

How does B2 suddenly become 2b and C2 suddenly become 2c?
What does the 0 mean? And what is the purpose of the minus sign?

2007-12-16 09:25:36 · 3 answers · asked by Gideon 1

0 ⤊

How does americium-241 decay?

How does americicium-241 decay? And in what cases does it decay?

2007-12-16 09:21:04 · 1 answers · asked by Fogged up 2

1 ⤊

What is the outer layer of the lithosphere?

2007-12-16 09:08:14 · 3 answers · asked by star_prince0 2

0 ⤊

what chemicals are put into the ocean?

i know about factories putting chemicals into the ocean and all that i was just wondering if anyone knew the names of the most hazardous chemicals put in there,,, u get what im trying to ask :D

2007-12-16 08:26:13 · 1 answers · asked by Anonymous

0 ⤊

How many miles would it take to get to the magma under the earths crust?

How many miles down??

2007-12-16 08:16:12 · 4 answers · asked by sportsgirl5405 1

2 ⤊

Why does the winter solstice mark the beginning of winter?

If the earth is starting to tilt *away* from the sun during the winter solstice, shouldn't the winter solstice mark the middle of winter rather than the beginning (since the hemisphere should be becoming less "wintery")?

2007-12-16 07:56:06 · 4 answers · asked by Anonymous

0 ⤊

I really need help with these science questions?

If you know any of these, help me out plz

1. The mixed layer is thickest at?

A)Equatorial and polar latitudes
B)Equatorial latitudes
C)Middle and polar latitudes
D)Middle latitudes

2. One cause of water mixing in the mixed layer is?

A)Swimming plankton
B)Bubbles from blacksmokers
C)Strong winds
D)Density differences

3. The straits of Gibraltar prevent polar water from entering the?

A)Atlantic ocean
B)Baltic sea
C)Indian ocean
D)Mediterrean sea

4. Diatoms are the most abundant kind of?

A)Bacteria
B)Salt
C)Phtoplankton
D)Zooplankton

2007-12-16 07:52:31 · 1 answers · asked by Anonymous

0 ⤊

Why does mineral water that has “trickled through mountains for centuries” go out of date next year?

2007-12-16 07:41:43 · 4 answers · asked by ben t 3

0 ⤊

what type of fault is the shaanxi earthquake?

this is for a project due monday first answerer gets 10 points

2007-12-16 07:23:31 · 1 answers · asked by anonymous 1

4 ⤊

How are Mid-Atlantic Ridge and the Himalayas diffierent from another?

What rock types are present in each mountain formation?

Is one type of rock more prevalent than others?

What other geological features are present in the area that may have contributed to the mountain formation?

Consider continental edges, streams, volcanic activity, earthquake faults, extreme surface temperatures, and other factors.

2007-12-16 07:12:03 · 5 answers · asked by smilez 2

0 ⤊

Could gasoline coagulate if left undisturbed over a three year span?

2007-12-16 07:03:45 · 2 answers · asked by Jack 91.1 WEDM 1

0 ⤊

1906 earthquake!! fast help please?

ok so i found all the info on the earthquake and fire
but i'm reseraching and inding something about a tsunami is this significant enough to put in my project?

2007-12-16 06:54:54 · 2 answers · asked by LMC 2

9 ⤊

why isn't Pluto a planet?

my duaghter has a project .she's seven and needs to know things about pluto .her name is lashawn .i forgot why it isn't a planet

2007-12-16 06:29:15 · 10 answers · asked by leonard c 1

1 ⤊

Can Quartz watches resist to water?

Please answer ASAP!

2007-12-16 05:58:27 · 2 answers · asked by Benjamin L 1

5 ⤊

what can we do to stop global warming?

2007-12-16 05:55:25 · 6 answers · asked by tickle_zilla 1

5 ⤊

why is our oil under their soil ?

i saw this bumpersticker and find it great. any answers ?

2007-12-16 04:34:42 · 8 answers · asked by dawn666annapolis 6

0 ⤊

list some of spains lakes and waterways and rivers?

2007-12-16 04:09:43 · 1 answers · asked by Anonymous

0 ⤊

geo of canada..? the appalachians///?

i am doing a project on the appalachians..which is located in canada ans US..
but i am doing the canadian 1..i need 2 knw som good details abt the appalachians..
plz ..can i hav any reference websites..2 thanks...

2007-12-16 03:53:55 · 3 answers · asked by lovehurts 1

0 ⤊