Answer:
The atom is mostly empty space.
Explanation:
Ernest Rutherford in the year 1911 developed a model of an atom. In his model the atom was shown that the atom is mostly empty spaces composed of negative electrons which orbits round a positive nucleus just like planets revolving round the sun.
Rutherford came up with this model by performing experiments in 1909 which involves the scattering of alpha particles on a thin gold foil. From this experiments he came up with his model.
c-undergoes the most change
Explanation:
Horizon B is the layer in a soil profile that has undergone the most change.
A section through a typical soil reveals many of the different layers.
The rock layers are divided into sections which are called horizons.
Horizon O is the organic matter
Horizon A is the top soil
Horizon B is the subsoil.
The subsoil of horizon B is the layer that undergoes the most change. It materials are constantly being leached away from this layer by chemical weathering. Some of the processes here accounts for it typical reddish brown color.
The rock layer here is rich in iron oxide and washed down minerals. It lacks significant amount of humus.
learn more:
Soil formation brainly.com/question/2473178
#learnwithBrainly
<em>The question doesn't show symbols to match, but I'm giving you some common examples to help you out with your own assignment.
</em>
Answer:
<em>List below</em>
Explanation:
<u>Electric Devices
</u>
Electricity is usually converted into a variety of other forms of energy, like mechanical, chemical, nuclear, potential, thermal, among many others.
The devices listed below convert electricity in the mentioned forms of energy
- A speaker converts electric energy into sound energy
- A light bulb glows when it receives current
- A power source (battery, generator) provides energy to a circuit
- An on/off switch starts or stops the flow of current
Answer:
The Moon takes 27.3 days to orbit Earth, but the lunar phase cycle (from new Moon to new Moon) is 29.5 days
