What can search the internet and select elements based on important words? a. monitor b. search engines c. printer d. websites

Can someone work out the answer as it comes up in one of my computer science exams and i don't understand the cryptovariables

What need most led to the creation of the advanced research projects agency network? darpa wanted scientists to be able to collaborate and share research easily. darpa wanted american and russian politicians to be able to communicate. darpa wanted astronauts to be able to contact nasa and the white house. darpa wanted factory owners to be able to coordinate supply chains.

How many meatballs required for a larty of 25 adults and 6 children