Answer:
Igneous rocks are formed from cooled magma but metamorphic rocks are formed by temperature and pressure changes inside the Earth
Explanation:
Igneous rock , formed by the cooling of magma (molten rock) inside the Earth or on the surface. ... Metamorphic rocks, formed by temperature and pressure changes inside the Earth. All three types of rock make up the Earth's lithosphere, the outermost layer.
The dating technique which was used to establish the age of the volcanic ash at the Laetoli site is: potassium-argon (K/A) dating.
<h3>What is absolute dating?</h3>
Absolute dating can be defined as a radioactive process that is typically used to accurately determine the age of a rock, volcanic ash or fossil, by measuring the decay of the isotopes that is associated with the rock or within the fossils.
Thus, scientists can accurately determine the age of a volcanic ash, rock or fossil by measuring its isotope concentration such as through the use of potassium-argon (K/A) dating.
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Answer:
Option (3), (4) and (5)
Explanation:
Forest is one of the main geographical feature on the earth's surface. It covers a significant portion of areas on the earth's surface. Human beings and other organisms are largely dependent on these forests. It provides habitat to a large number of animals, provides timber and fuels for different uses. When any population migrates into an urban areas, it results in the decreasing amount of forest covered area, which is due to the rapid deforestation process.
Thus, the correct answers are mentioned above.
When multinational corporations invest in a country they create employment opportunities. They account for increased incomes and expenditures in the economy of the host country stimulating growth. Workers also benefit from technology transfer as new machinery is imported into the host country.MNCs are believed to be highly beneficial for developing countries in terms of bringing employment opportunities and new technologies that spill over to domestic firms. Furthermore, MNCs often benefit from government subsidies, which could in the future be linked to investment in local firms.
Cooperation is the process of a group of organisms working or acting together for common, mutual, or potential benefit, rather than working in competition for selfish gain. Many plant and animal species cooperate with both conspecifics and conspecifics.
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