Fa material has a hardness of 8, it cannot be scratched by a material with a hardness of 7. true false

What are characteristics of minerals? select 3 choices

In the sentence "a mining company will consider the distribution of coal when deciding how to mine the coal," what does the word distribution mean?

The source of energy shown in the image is (renewable, non renewable, polluting) a drawback of building a dam is that (it will destroy ecosystems, it requires fossil fuels, it won’t be useful for irrigation)