2. Which statement accurately describes a temperate deciduous forest? (Select all that apply.)
They have four distinct seasons.
Then have ten months of winter.
They have precipitation all year long.
They have no omnivores living there.

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

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.