0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is layer of air that protects earth from ultraviolet rays and meteorites?
Ozone layer protects us. It is present in the stratosphere.
What can a star's spectrum tell us?
scientists can tell the stars composition and temperature from its spectrum. Hope tht helps :]
How did technology help us discover meteorites?
Technology did NOT help much in discovering meteorites. Meteorites have been collected for hundreds of years, at least.
Is it true when you study earth's interior geologists often rely on indirect such as evidence from fossils?
No. Fossils tell us about what was living at or near the earths surface in the past, they do not tell us about the Earth's interior. When studying the Earth's interior, geologists look at micro gravity variations (which tell us about density differences in deep rocks), magnetic variations (which tell us a bit about the deep rocks composition) and most importantly seismic records (which tell us about the physical properties of the deep rocks). We also look for deep rocks that have been brought to the surface during the collision of continents (the roots of mountains) and volcanic events (such as diamond pipes).
What can texture tell us about the history of the rock and melt?
The initial composition of the magma is dictated by the composition of the source rock and the degree of partial melting.
How can studying meteorites help us understand the composition of asteroids?
Meteorites help us understand the composition of asteroids because meteorites are small asteroids.
Why are meteorities a possible source of information regarding the orgin and composition of Earth?
Because they were made the same time as the Earth from the same materials. And, since they have basically been frozen in time in outer space, they can tell us a lot about the composition of the Earth. The materials on Earth are constantly being recycled and nothing remains from the birth of the Earth, so that is why we look to outer space and the meteorites that fall to Earth to give us clues to its origin.
How can you tell that the moon has been bombarded with meteorites?
The impact craters on the moon's surface are obvious clues to the fact that meteorites have crashed into our natural satellite. that tell us that the moon doesn't have oxygen because if it have oxygen the meteorites would burn
What do volcanos tell us about earth?
They tell us that we need to be carefull, when there is a warning about a eruption. It also tellls us about the earth in many ways, such as: There is lava under the the land layer, there are many tectonic plates, and so on. Volcanoes tell us a lot about the chemical composition of rock. They tell us what incredible force there is under the earth's crust. They can be used to indicate were the earth has been hit by large astroids in the past. The shockwave from an astroide can go through the "core" to the opposite side of the earth and there cause an eruption. Volcanoes tell us more about the past than our future.
Seismic waves that go straight through earth make the trip very quickly what does that tell us about the composition of earths center?
solid
What is layer of air that protects earth from ultraviolet rays and meteorites?
Ozone layer protects us. It is present in the stratosphere.
What can a star's spectrum tell us?
scientists can tell the stars composition and temperature from its spectrum. Hope tht helps :]
What are the abilities of the earth that support both plant and animal life?
Its gravity holds in the atmosphere, which protects us from UV rays and meteorites.
What are the three types of asteroids?
A meteoroid which reaches the ground is called a meteorite. A small number of meteorites have been found which scientists believe originated on the Moon or Mars. The composition of meteorites gives us valuable information about the universe. Meteorites typically fall into one of five categories.IronsThese meteorites are made of a crystalline iron-nickel alloy that resembles the outer core of the earth. Similar in structure to some asteroids (type M), 5.7% of meteorites are irons.Stony-IronsThese meteorites are mixtures of iron-nickel alloy and non-metallic mineral matter. Scientists believe they are like the material which would be found where the Earth's core meets the mantle. 1.5% of meteorite falls are stony irons.Stony MeteoritesThere are three subclasses of stony meteorites:Chondrites: These meteorites are the most numerous, comprising 85.7% of all meteorites found. They are characterized by chondrules: small (average diameter of 1 millimeter) spheres of formerly melted minerals that have melded with other minerals to form a solid rock. Chondrites are believed to be among the oldest rocks in the solar system and are similar in composition to the mantles and crusts of earth and the other terrestrial planets.Carbonaceous Chondrites: These meteorites are very rare and contain elemental carbon, the basic building block for life on earth.Achondrites: Stony meteorites without chondrules, representing about 7.1% of meteorites. Scientists believe that some of these meteorites originate on the surface of the Moon or Mars.From http://www.odec.ca/projects/2006/jauc6s2/kinds.htm
How did technology help us discover meteorites?
Technology did NOT help much in discovering meteorites. Meteorites have been collected for hundreds of years, at least.
Is the Earth's atmosphere important to us?
The Earths athmosphere is one of the most important things to us. The athmosphere is very delicate and contains all the protection we need from meteorites, UV rays, and allows the Earth to sustain life.
Is it true when you study earth's interior geologists often rely on indirect such as evidence from fossils?
No. Fossils tell us about what was living at or near the earths surface in the past, they do not tell us about the Earth's interior. When studying the Earth's interior, geologists look at micro gravity variations (which tell us about density differences in deep rocks), magnetic variations (which tell us a bit about the deep rocks composition) and most importantly seismic records (which tell us about the physical properties of the deep rocks). We also look for deep rocks that have been brought to the surface during the collision of continents (the roots of mountains) and volcanic events (such as diamond pipes).
