Answer:
B. An atom is a solid sphere
Explanation:
The idea that the atom was a solid sphere paved back to the first atomic model in the <em>19th century</em> theorized by <em>John Dalton</em>. According to him, an atom is <u>intact and hard and cannot be broken down or divided</u>.
However, many scientists continued to research and it was found that <em>the atom was not actually a solid sphere.</em> It was made up of<em> protons (positively-charged), electrons (negatively-charged) and neutrons (neutrally-charged). </em>This invalidated Dalton's solid sphere model.
because they have many population and many other countries visited the singapore because of the environment, beautiful place and etc..
A Sea Stack is an isolated remnant of bedrock standing above a wave-cut platform. Here is what Sea Stack formed. The cracks then gradually get larger and turn into a small cave. When the cave wears through the headland, arch forms.
It’s the world D
The reasoning is because when u search up Africa the Arabic comes up so yeah
Because of natural evolution , ecosystems began to form broad belts for survival .
