What is the meaning of isopleth map?

Which of the following is not a place where hydrogen can be found on earth? a. natural gas well b. atmosphere c. water d. mine

In the figure, polygon abcd is transformed to create polygon a′b′c′d′. this transformation is a by a factor of .

In a constitutional monarchy, the king or queen a. is a symbol of the nation b. runs for office c. controls the legislative branch d. has absolute control