Suppose a mountain range is made up of 18 mountains, each mountain has 8800 trees on it, and each tree has 125,000 leaves on it.

How many leaves are
on all of the trees in the mountain range? Express your answer in scientific
notation.

The answer is 1.98 x 10^10 leaves.

18 mountains x 8800 trees = 158400 total trees

158400 total trees x 125000 leaves = 19800000000 total leaves in entire mountain range

Sci not: 1.98 x 10^10 leaves  

To do scientific notation, put the decimal place right after the first digit in the number and count how many places are behind the decimal. you'll write the number of places after the decimal after the ^ in the 10^.

the dissolution of polymer can be thermodynamically described in 2 steps.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )