Answer:
The correct answer is erosion
Explanation:
- Magmatism refers to the positioning of magma on the outer surface and within the layers of a terrestrial planet which on cooling solidifies into igneous rocks.
- Mechanical weathering is the process of breaking of big rocks into tiny or smaller pieces. It is basically a process of conversion of big rocks into sediments thus leading to the formation of soil.
- Chemical Weathering is the process of breaking down of big rocks into tiny pieces by chemical reactions instead of mechanical processes.
- Erosion is the process of removal of soil, sediments and dissolved substance from one location and transporting it to another location on earth crust.
- Metamorphism is the process of change in the structure or com[position of a rock by the action of pressure, temperature or other natural forces.
Lunar eclipses occur when the earth comes between the Sun and the Moon. This positioning quickly changes due to both the Earth and the Moon orbiting around the sun and each other.
A direct democracy is a system of government in which every citizen votes on every issue. The opposite of this is a representative democracy, in which the citizens vote for representatives who will then vote on issues on behalf of their constituents.
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Answer : scientists determine the absolute age of a rock in millions of years before present rather than just the age of the rock relative to the rock units around it. This information helps geologists develop more precise geological history models for the rocks and regions they study.
Explanation: