When a piece of Halite is broken, it breaks into many smaller cubes. when a mineral breaks into jagged edges. Some minerals have no planes of weakness, so they have no cleavage. Crystal Shape is the natural geometric shape of a mineral.
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To answer this item, we let x be the number that is not unknown in this item such that the situation in this problem can be expressed as follows,
x - 9.3 = 68.91
Adding 9.3 to both sides of the equation,
x - 9.3 + 9.3 = 68.91 + 9.3
Simplifying,
x = 78.21
The answer to this item is 78.21, this I think is the first choice except that it is mistakenly written as 7.21 only.
It can be like it is as we are further away from the equator and quite close to the Arctic circle. Have a look at the pic I have sent. It is of the Arctic circle.
Hope this helped
let me know.
The answer is FALSE. Just took the test.