Pluto has a diameter of 2 300 km. How does this information suggest to scientists that Pluto is not a planet

Explanation:

it is too small to be a planet as the avrage planet size

can be around 20,000 the smallest planet in the solar system mercurey has more than pluto

clouds form

solid ice forms on leaves.

water droplets form on grass.

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.