Lava and other materials that are launched from a volcano into the air are referred to as tephra. The correct option among all the options given in the question is option "A".Tephra is actually the material that is ejected by an active
volcano irrespective of the type of the material, fragment size or emplacement
mechanism. The airborne substances of the volcanoes are known by the name
pyroclasts. The pyroclasts remain as tephra unless they become hot enough to
fuse together.
Answer:
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Explanation:
This is a great question! Sheep's wool is made to keep them warm during the winter and cold weather. In summer there wool gets shaved off and used as yarn or other materials. Do they get colder when it is raining? If you ask a shepherd they would tell you, Sheep do just fine in the rain due to their fluffy wool coat. The wool does not shrink like it would in the wash on a sweater. This is because their wool fibers have scales that are all pointing in the same direction. When it rains or they get wet, it is possible for them to slide position without getting caught or locked into place. This allows them to keep warm in cold or wet weather. Why do sheep stand still in the rain? This is not because they are getting wet and they want to stay as still as possible to reduce cold like some people may say. The real reason is, because wool has hairy scales and grease on the surface, the sheep stand still, will let rain water flow down, reducing the area of its own wetness. If the sheep is standing still the surface of the wool will eventually get wet but the water will not sink deep into the wool and eventually on the skin. So, the final answer to this question would be, No. Sheep do not really feel much temperature change when it is raining or cold outside!
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They are; if u divide both integers in the second ratio by three, u get 5:9.
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Answer:
Solar flares and CMEs send enormous amounts of energy and charged particles hurtling into collision with the Earth's upper atmosphere, where they can cause geomagnetic storms. Charged particles during geomagnetic storms cause disturbances in the Earth's magnetic field, generating effects on electrical systems.
Explanation:
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