Respuesta :
i think the first one is B Second once is D and thord is B
In our system mainly four states of matter are present and they are solid, liquid, gas and plasma. In melting solid changes into liquid and in sublimation solid changes into gas.
What are states?
States are those phases which gives idea about the arrangement of constituent particles in it and also states the physical properties.
- Main states of matter that are exist are solid, liquid, gas and plasma.
- Density of water is less in the solid state a compared to the liquid state, that's why ice is always present above the liquid.
- Solid state has a perfect shape, orientation and arrangement of atoms within it.
- Melting is a process in which solid state changes into liquid state.
- Melting point of water is 0°C.
- Meling point of flour is higher among salt and sugar and it is equal to approx 220 degree celsius.
- Sublimation is a process in which solid changes into gaseous state for example, sublimation of camphor.
- Melting of ice, freezing of water, burning of camphor, melting of wax and formation of precipitates are the example of changes of states of matter.
Hence all points are discussed above.
To know more about state of matter, visit the below link:
https://brainly.com/question/895788