Answer:Examples of valuable nonmetallic minerals extracted by mining are sand, gravel, phosphate
Explanation:
Nonmetallic minerals refers to those chemical elements that cannot be used to make any other products after they have been melted. Examples of these minerals are clay, limestone,marble , sand and gravel. They are called non metallic because they can not conduct electricity , can not conduct thermal power, they lack luster,rigor and malleability.
The non metallic metals are mostly used to make cements , lime and glass.
They can also be used in sanitary ,tableware and decorative products.
Several steps are followed in making certain products from these minerals such as grinding,cutting,mixing,shaping and heating.
Answer:
False.
Explanation:
Inflation is the increase in the average price level in the economy and deflation is the decrease.
Answer:
1. Distance from the sea.
2. Distance from the equator.
3. Shape of the land.
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Answer:
D. Actual investment will equal planned investment only when there is no unplanned change in inventories.
Explanation:
Actual investment is the total expenditure that a business spends on investment during a given period of time. It includes planned investment and any unplanned changes in inventory.
Actual investment = Planned investment - Unplanned inventory changes
Therefore when there are no unplanned changes in inventory, then actual investment equals planned investment.
