There are two types of natural resources. The first are renewable natural resources. They are called renewable because they can grow again or never run out. The second are called nonrenewable natural resources.
T<span>he most important inventions for spreading European influence would be the method of getting quinine from cinchona tree bark, the Maxim gun, and the Repeating Rifle. The method of getting quinine would be because malaria had been a large problem in central Africa and someone was able to cure it, The Africans would believe that they were more powerful than they had thought. The two guns also could spread influence through force if they were not willing to listen.</span>
Answer:
No water source is available that can be used for the production of energy from water.
Explanation:
Solar energy, energy from water, nuclear energy, geothermal energy, and wind energy are used to produce electricity on Earth. All these sources are present in large amount on earth but on Mars all sources are available except water so that energy from water can't be produced. It has low temperature of the soil so no production of geothermal energy occurs. Water and oxygen for the survival of humans are important which are not available on Mars which are the potential problems that need to be solved.
Answer:
Biotite
pyroxene
amphiboles
Explanation:
From the given option of the question , the minerals with dark color are as follows -
amphiboles
pyroxene
Biotite
<u>Biotite </u>- This is a mineral of mica , and is deep block or may be brownish in color , the hardness value is 2.5 to 3 .
<u>pyroxene</u> - It is the nineral found in metamorphic and igneous rocks .
<u>Amphiboles </u>- is green to black in color .
Answer: No
Explanation: The ocean floor might be a little younger than the earth because The earth had to form its self first and then on the inside everything else
