Because air pressure decreases at the rate of 0.91 inches per 1,000 feet of ascent, rising air expands and cools. The flat bottom of cumulus clouds defines the exact height at which a critical combination of temperature and air pressure causes water vapor within the rising current to condense into a visible cloud
The correct option is this: TAN'S MOTHER COULD THINK OF SEVERAL WAYS TO ANSWER A QUESTION LIKE THE ONE DESCRIBED IN THE EXCERPT.
From the passage, it can be seen that, Tan's mother believed that so many things would have fit exactly into those blanks that are present in the questions given to Tan. This shows that the mother's imagination is very active and that those that set those questions have ignored imagination ability of the students.
The following that helps organisms in keeping their shape are the bones and the skeletal muscles. The bones serve as the framework of the body. The skeletal system supports all the other systems and along with the skeletal muscles, they give the shape of the body. The skeletal muscles are muscles that are attached to the bones for the voluntary movements of the body.
An potato plant that is modified to resist pests because if you can modify the dna of a potato to resist pest, you could open up a whole new world of farming
