English, asked by astha16, 1 year ago

speech on our changing earth

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Answered by tanyagoyal0110
7
Speech on Our Changing Earth

•Erosion is the transportation of weathered pieces of bedrock through the agents of wind, water, and gravity. As mountains are built up by tectonic forces, they are also broken down and carried away by weathering and erosion.
             The pull of Gravity makes surface material move downward. Downslope movements may be rapid or very slow. They may involve only the surface material, or they may involve the bedrock underneath. Houses built on hills can contribute to soil movements because the weight of the homes may add to the gravitational force. Wind contributes to the erosional process by carrying surface material from one location to another. Glaciers, huge sheets of ice that can move slowly over land, pick up and carry rocks and soil with them. When they pass through river valleys, the glaciers deepen those valleys. Mountain Glaciers, coupled with the downward force of gravity, create avalanches that can cause great erosional damage.
             Of all the erosional agents, running water is the most powerful. Rivers, working with the force of gravity, have devastating erosional impact. The action of rivers flowing against the land has formed gorges as large as the Grand Canyon. As rivers erode land, they carry deposits with them. DELTAS are formed at the mouths of rivers that empty into a lake or an ocean. The soil that is carried along a river and deposited as its mouth is the richiest and most fertile of all soils. The Nile and the Mississippi Rivers have formed deltas that are noted for their rich soil, making these regions highly desirable for agriculture.

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I hope my answer helped you.

tanyagoyal0110: plz mark my answer as the Brainliest
astha16: this was frm net
Answered by Anonymous
5
OUR CHANGING EARTH

Earth....Our planet...The Planet considered to sustain life in the whole known universe. Our Earth Is titled by many names such as Prithavi Or Bhumi In Indian Religion, is often called as our mother.

Many Changes had occurred in our planet's past. First, it was just a huge ball or rock, covered with volcanoes and lava rivers and fountains. Eventually, it cooled down and by unknown medium, it covered itself with life.

Life, that is dated back to 3.4 billion years, completely transformed it. It was just a Bacteria that now covers whole Earth.

Earth's Past is relatively a violent one. It killed Dinosaurs, it killed animals living in ice age, but still Life survived, we don't know why. Earth is the only place inhabited by Humans or Homo Sapiens. It's still a mystery why only humans were chosen to evolve the most and change Earth, but whatever they are doing, whatever WE are doing is just going to kill us all.

The Bronze Age brought a change that was a grand one. The Humans evolved the most in bronze age, making them the most powerful species present. But The path we chose will kill us all.

The changes we brought were wonderful as well as disastrous. We are in 21st century now and it is predicted that if we walk down on the same path we have been walking, we will be doomed forever.

If we change ourselves, earth will change it selves. It is Our duty to change it but in a good manner. Just Growing trees will not work, Growing our kindness will be the greatest of them all.

It is Life that changed the earth into a hell, and now it IS life itself that will change Earth into a heaven.




astha16: ohh
tanyagoyal0110: I am also the biggest fan of justin
astha16: ohh
tanyagoyal0110: Mine's is also DESPACITO
astha16: oh again somethin common :)
tanyagoyal0110: ok
tanyagoyal0110: sorry
tanyagoyal0110: ok
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