The diagram shows the composition of the planet Saturn.liquid hydrogen75.0% hydrogen atmosphere24.9% helium G0.1% other gases liquid helium rocky core(a)Describe how Saturn's atmosphere differs from the Earth's atmosphere.Give three differences.233(b)Some properties of hydrogen and helium are given...
Professor Hou Ming of Peking University studies volcanoes. Ie warns that the world has not seen the worst yet. The worst eruption Dust from the volcano rolled across the Earth's skies. There was no summer in Europe and Americ a the following year. But evidence shows that 73,000 years ago...
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The mantle is the thickest layer of Earth, making up about 84% of the planet’s volume. It extends from the bottom of the crust to a depth of about 2,900 km. It is composed of silicate rocks rich in iron and magnesium. The mantle is semi-fluid and contains convection currents that ...
in Indonesia.Dust from the volcano rolled across the Earth's skies. There was no summer in Europe and Americ a the following year. But evidence shows that 73.000 years ago there was a much greater eruption. "It reduced temperatures by maybe 6 C in some places,and the whole planet was ...
I think we should cut down the use of⑧ unrecyclable plastic to protect our planet. M: That's a good idea. But of course, as the professor said: "We all have a role to play in protecting the environment. If we all do our part, we can live a healthier life on Earth." 3 Use ...
A scale model of the planets in the solar system is given below. The minimum distance from Earth to Mars is54.6 \times 10^{6}kmfrom the surface of each planet. State the ratio in the form1cm:n \ kmof the scale model to the real distance. ...
A volcano is a place on the Earth's surface (or any other planet's or moon's surface) where molten rock, gases and pyroclastic debris erupt through the earth's crust. Volcanoes vary quite a bit in their structure - some are cracks in the earth's crust where lava erupts, and some ...
Despite us referring to Earth as a blue planet, the color blue is uncommon in plants and even rarer in animals. So imagine the surprise researchers in northeastern India felt when they came across a bright blue ant chilling out in an active village. Yet there Paraparatrechina neela was, ...
3. Think about the structure of the passage and complete the diagram.Ocean exploration OVER THE CENTURIES: sailing across oceans to explore Earth's furthest corners MODERN AGE: exploring I deep sea Archaeologicekploration. Finding ancient ruins in 3 shallow waters. Working to overcome challenges ...