Meteors are burning up in the mesosphere. The meteors make it through the exosphere and thermosphere without much trouble because those layers don't have much air. But when they hit the mesosphere, there are enough gases to cause friction and create heat.
The right answer for the question that is being asked and shown above is that: "<span>C) Both liquefy due to heat " the </span>statement that best describes a similarity between asteroids and comets is that <span>C) Both liquefy due to heat </span>
If a new substance suddenly appears that wasn't there originally,
then a chemical change has occurred.
Like for example, (this is the only example I can think of right now):
-- You leave your bicycle outside in the rain, and it gets wet, and
a few days later there's some rust on it.
-- You scrape off some of the rust, take it to school, give it to the
Chemistry teacher, and ask her to analyze it and tell you what it
is. Later that day, she tells you it's a substance called "Iron oxide".
-- Where did that come from ? There was no iron oxide there.
There was only iron in the bicycle, and air, and water.
-- The iron oxide formed from a chemical change when the iron
on the surface of the bike combined with some of the oxygen in
the air, and molecules of a new substance were created. (For
some reason, the presence of water makes this chemical reaction
go faster.)
Answer:
Force is the strength or weight of things that depends on movement. The types of forces are conteact force, spring force, applied force, air resistance force, normal force, frictional force, tension force, and non-contact force.
Answer:
✍️Argon:
†Observation:
»» Solid:
★ Temperature: 43 Kelvin.
★ Illustration: Particles are in one position not moving.
»» Liquid:
★ Temperature: 86 Kelvin
★ Illustration: Particles are still compacted but slightly moving.
»» Gas:
★ Temperature: 189 Kelvin
★ Illustration: Particles are moving slowly around each other.
Explanation:
