Rivalry between France and Britain in North America began over River valley 1. PLEASE ANSWER ASAP will give brainlist if you answer

The war began over competing land claims between Britain and France in what is now western Pennsylvania.

aug 15, 2012 - although van leeuwenhoek was not the inventor of the microscope, he advanced it more he loved to grind and focus a new lens in order to see the unseen world. most of leeuwenhoek's microscopes were silver. in a simple but significant experiment (1668), he demonstrated that worms found on