True :) Acid cant burn its self.
Answer:
The Particles that make up the aluminum bar are moving slowly.
Explanation:
Hope this helps.
The changes that occur in body size, proportions, and skeletal maturity during the middle childhood include; Bones continues to strengthen and broaden, permanent teeth replace the primary teeth, normally a third of school age children suffer from malocclusions, making braces common by the end of elementary school. Additionally, the children's growth is slow and regular though large individual and ethics variations exists in the physical growth. <span />
<u>Answer</u>:
Smaller planets would dissipate heat more rapidly and this criteria doesn't satisfy the conditions of existence of life.
<u>Explanation</u>:
The existence of life on Earth was possible because it fulfilled the criteria needed for the conditions of generating life in a planet. Its distance from sun is appropriate, it is made up of rock, it is big enough to have a core which is molten and it has a magnetic field. If it was a smaller planet, then it would have a liquid hot core that dissipate heat at a rapid rate. This condition doesn't support the criteria of life's existence.
Answer:
Because of gravity, in matter does not leave the system so the chemical matter we have on Earth will always be here
