Before a forest fire, scientists observed that there were 10 different types of trees. After a forest fire, they noticed that only 3 of them regrew within 3 months. Which inference would be the most correct? A. Most of seeds of trees are unaffected by forest fires.

B. Biodiversity in a forest increases after each fire.

C. Certain tree seeds are better adapted to survive forest fires.

D. Forest fires will permanently remove certain species of trees.

alfred von schlieffen, german army chief of staff, was given instructions to devise a strategy that would be able to counter a joint attack. in december, 1905, he began circulating what later became known as the schlieffen plan. schlieffen argued that if war took place it was vital that france was speedily defeated.

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.