Answer:
Hydrogen in the core of the star is converted to helium by nuclear fusion. When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by fusion, the core becomes unstable and contracts.
The Atlantic Ridge has mountains and deep valleys in the hemispheres, north and south.
The East Pacific Rise has no large mountains or valleys because the Pacific Rises oceanic crust is moving away from the east.
Answer:
Soil is good for growing grass. It contains a lot of grass for grazing, animals come here for migration.
Explanation:
Answer:
A portion of the lithosphere in which the functional interstices of permeable rock or earth are not filled by water under hydrostatic pressure.
In your own words::
Well’s use is permanently discontinued or if it is in a condition that makes it uneconomic to repair.
Explanation:
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