Explain why silica-rich magma and magma that contains gas erupt explosively.

Which of the following is an example of a policy that may be implemented by a business that has trouble with employees using the internet for their own personal needs? a. all employees will have to take a safety training class. b. employees caught using the internet for personal needs will have to take a professional development class. c. personal interviews will be conducted to find out who is using the internet for personal needs. d. employees will be monitored, but nothing will happen if their employer catches them using the internet for personal needs.

In the late 1990s, brazil’s poor people protested about crowded cities land distribution mining permits industrial pollution

Can someone answer all these questions i need it done by tonight. once again