Question

ne key below to identify these two rocks.
Rock 1
is soft, made of individual
grains, mainly yellow with
some colored layers.
Rock 2
is white: soft, has tiny
(grains and fizes when lemon
juice is poured over it
if no, go to 4.
Key to some common rocks
1 Does the rock fee when lemon juice is poured over ? If yes, go to 2
? Is the rock hard? If yes, it is limestone; if no, then go to 3.
3 The rock is chalk.
4 Does the rock have layers? If yes, go to 7: if no, go to 5
5 Does the rock contain crystals? If yes, it is granite; if no, go to 6
6 The rock is flint.
7 Is the rock soft and made of individual grains? If yes, it is sandstone,
if no, go to S.
8 The rock is slate.​

Answer 1

Answer:

I'm not understanding it