Why did rock collector like his collection of metamorphic rocks?

Because gneiss is nice, but don't take it for granite.

Because the washing up fell over due to his use of tectonic plates

There are an infinite number of solutions to this. However, if you also stipulate that the three collectors between them bought the entire collection then there is only one solution.

There were seven coins to start with. The first collector bought half the collection (three-and-a-half) plus one-half or four coins, leaving three. The second collector bought half the remainder (one-and-a-half) plus one-half or two coins, leaving one. The third collector bought half the remainder (one-half) plus a half or one coin, leaving none.

Red stone can be mined with an iron pickaxe or better. Neither stone nor wood pickaxes will work. By "blue stone", if you mean obsidian, you will need a diamond pickaxe.

Rounding 72 to the nearest ten gives 70, 33 to the nearest ten - 30, so he thinks correctly by assuming that he has 50 rocks.

Making up the majority of the Earth's crust, rock is usually defined as a mixture of common minerals.

Rocks can be hard or soft, as small as a grain or as large as a building. They have been an integral part of the history of mankind, first being used as tools for hunting and defense, and as a building materials to construct shelters and monuments.

Combined with the effects of tectonics, weathering and vegetation, rocks define the natural landscapes we see around us. The minerals and metals we find in rocks are essential to the prosperity and cultural splendor of human civilization.

There are many kinds of rock, and they can be classified in a number of ways. However, geologists classify rocks based on how the rocks were formed. The three classes are:
1) igneous rocks (formed directly from liquid rock),
2) metamorphic rocks (formed by direct alteration of existing rocks), and
3) sedimentary rocks (formed by eroded materials from other rocks).

Hi i would have someone to check the pump and also inside the drain hoses and tub to make sure.

you would be better off contacting the developer about geting a cd than asking us

I had the same problem, so I took out the black stopper, and soaked the whole thing in bleach water for about an hour, then I took a hand full of " aquarium " rocks and put them inside the tank, and shook them inside using a bit of the same water and then got rid of the rocks,( the rocks worked as an scrubber ) .... it worked pretty good