Can comets hit the Earth's surface? Yes but they would have to be above a certain size so as not to burn up high in our atmosphere. You shouldn't worry though ...
The Ocean, Rivers, and Lakes. If you want to get real technical then you can add Lava to the list.
No. The comet Eva is a fictitious comet depicted in the TV series H2O: Just Add Water.
At convergent boundaries some mantle material can melt and rise through the crust, forming volcanoes.
The subject of cometary collisions with the infant Earth are still the subject of debate. Some scientists believe that comet collisions would contribute too small a mass to add much to the atmosphere, while others suggest that long ago there would have been many more comets in the solar system, and that the reason we don't see them now is because they have already hit the Earth - and the Moon, and Venus, and Mars, and all the other planets.The honest answer is, right now we don't know.
Increase the temperature to provide more kinetic energy for the reactant molecules to collide. Increase the concentration of reactants to increase the frequency of collisions. Use a catalyst to lower the activation energy barrier for the reaction. Increase the surface area of solid reactants by grinding them into smaller particles. Increase the pressure for reactions involving gaseous reactants to reduce the volume and increase collisions.
I would add overload, and collisions.
surface
Currents of cold sinking air produce regions of higher pressure at the Earth's surface. As air sinks, it compresses and becomes denser, leading to an increase in pressure at the surface. This high pressure often leads to fair weather and clear skies.
You times when doing area. You add when finding permiter.
In 1740 a comet in Ireland was about to hit the earth, and everyone panicked but a local girl named Eva. The story says Eva was a mermaid and became a mermaid in a sea cave. She used her mermaid powers to build a tower of light which drove the comet away. Everyone was so thankful to Eva that they named the comet after her as a thanks. After that Eva disappeared, there are a lot of different stories on what happened to her. The comet Eva really does exist. STORY IS FROM H20 JUST ADD WATER
Add up the sides.
Find the surface area of each face then add them together to give the total surface area.