the rain does not sink down to the centre of earth because it the centre of earth and nothing could be sink down to the centre
No, rain does not sink to the center of the Earth. Rain falls from clouds to the surface due to gravity, and the water eventually flows into bodies of water or into the ground.
from the calcum and silican from which made it sink down center
Rain does not sink to the bottom of the Earth because of gravity. Gravity pulls raindrops towards the center of the Earth, causing them to fall downwards. Additionally, the Earth's surface is solid and impermeable, preventing rainwater from seeping through to the Earth's core. The water cycle also plays a role, with rain eventually evaporating back into the atmosphere to form clouds and fall again as precipitation.
Rainwater and groundwater eventually reach an area where the rock is impermeable or a depth where water can't exist as a liquid because of the increasing geothermal gradient.
why would the heavier metals sink to the center during the formation of the earth is like
That's correct. Rain falls to the ground due to gravity, but it doesn't penetrate through the Earth's crust and reach the center because the Earth's layers are made of different materials that prevent water from sinking all the way to the core. Instead, rainwater typically forms rivers, lakes, or seeps into the ground to replenish groundwater sources.
it's because of the gravitational force.
sink holes are destuctive because it is breaking down the earth surface
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This is related to the fact that heavier - or rather, denser - materials tend to sink to the bottom. In this case, to the Earth's center.
Objects do not sink into the Earth due to force of gravity, which pulls objects towards the center of the Earth. The ground provides an upward force (normal force) that counters the force of gravity, keeping objects on the surface.
When gravity's force is greater than buoyancy, an object will sink in a fluid. This is because the downward force of gravity exceeds the upward force of buoyancy, causing the object to be pulled down towards the center of the Earth.