Answer:
Dwarf planets lack the gravitational forces needed to pull in and accumulate all of the material found in their orbits.
DNA fingerprinting is used to analyze the DNA sample and identify the criminal. The DNA has a set of the portion, which is different in all unrelated people, and this is unique to every person. This is used as a fingerprint and is used to identify a person, in a crime scene.
Answer:
condensation
Explanation:
The water cycle
evaporation--> condensation--> precipitation-->repeat
I think that the tectonic plates would shift towards each other. This creates what is known as a convergent boundary. If the plates moved away, then this would be known as a divergent boundary. If it is wrong, I am terribly sorry. I did this question on a quiz before, and I think I got it right. It was in 8th grade though, so... two years ago.
Answer: Solar panels are made up of silicon cells. This because silicon has high ability for conduction and this make it to be able to convert sunlight into electricity. It is in solar cells has impurities and great chemical properties which make it to be to convert sunlight to electricity.
Silicon
Explanation:
Silicon is an element with atomic number 14, it is a non metal and crystalline solid. It has blue grey metallic lustre. Silicon is made with impurities in solar cells and has special chemical properties to convert sunlight into electricity. It is a semiconductor, a material that can act as a conductor and insulator.
When light interact with silicon cells, it make electrons to be in motion and initiate the flow of electricity, it is called photovoltaic effect.
Silicon alone is not used, it used with metal casing and wiring to ensure proper electric flow.
