Essay on Save Earth for Children and Students.
If you compare some of the photographs which can be found on NASA's website, you can really see how human beings have changed the appearance of our world over the years. The time difference between these images ranges from five to 100 years. Incredible stuff.
Plague, famine, heat no human can survive. This is not science fiction but what scientists, when they’re not being cautious, fear could be our future.
Save Earth Essay 3 (200 words) Earth is the most precious thing in this universe having oxygen and water, essential things for life. The natural resources found on earth are deteriorating day by day because of various wrong practices of human beings.
Earth is the planet we live on. It is the third planet from the Sun.It is the only planet known to have life on it. The Earth formed around 4.5 billion years ago. It is one of four rocky planets on the inside of the Solar System.The other three are Mercury, Venus, and Mars. The large mass of the Sun makes Earth move around it, just as the mass of Earth makes the moon move around it.
The Earth was formed about 4.7 billion years ago. The Earth’s shape is very close to that of a sphere, not perfectly spherical. The Earth’s equatorial diameter is about 12,756 km, which is slightly larger than the polar diameter; about 12,714 km Surface Area of the Earth is 510,065,600 km 2 of which 148,939,100 km 2 (29.2 %) is land and 361,126,400 km 2 (70.8 %) is water.
It’s though that the Earth’s magnetic field is due to the planet’s core, which is made up of nickel-iron, combined with the fast rotation of the Earth. It’s important to realize that the rotation of the Earth is slowing down at nearing 17 milliseconds for every 100 years.
Global warming is the ongoing rise of the average temperature of the Earth's climate system and has been demonstrated by direct temperature measurements and by measurements of various effects of the warming. It is a major aspect of climate change which, in addition to rising global surface temperatures, also includes its effects, such as changes in precipitation.