Explanation:
When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Solid water, or ice, is less dense than liquid water. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density
First blank I think is similar or the same and the second one is repell
Answer:
The geosphere transfers carbon to the biosphere when volcanic eruptions occur. Burning fuels like carbon dioxide, fossils, gasoline also transfers carbon from the geosphere to the biosphere.
Carbon is incorporated into the geosphere when an organism dies. The carbon then forms fossils fuels etc. which are consumed by humans. The shells becoming limestone also transfers carbon. These limestones are used by humans for various purposes.
Explanation:
1 chemical reaction endothermic
2 physical change. exothermic
3 chemical reaction endothermic
Answer:
A scientific hypothesis must be testable, and;
A scientific hypothesis must be falsifiable.
Explanation:
I looked it up o-o sorry if its wrong. :3
