Match the following celestial bodies with the correct description. 1. made mostly of hydrogen and helium

meteoroid

2. hottest planet in the solar system

comet

3. have heads and tails

Venus

4. pieces of metal or stone that come into Earth's atmosphere

sun
5. orbit around planets
satellite

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.

The most effective way to provide children with safety messages is to