If you know that a star is large and red, what else is probably true about it? O It is a white dwarf.
O It is warmer and brighter than the Sun
O It is cooler and dimmer than the Sun.
O It is cooler and brighter than the Sun.

it is cooler and dimmer remember this red stars are old stars near their death

most sediment washes or falls into the river as a result of mass movement and runoff. other sediment eroded from the bottom or sides of the river.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.