What type of brush works best to simulate organic material?

Which of the following is a disadvantage of using a proxy server?

A. shields internal host IP addresses B. slows Web page access C. may require client configuration D. can't filter based on packet content

In the text, we say that after the merge sort splits the array into two subarrays, it then sorts these two subarrays and merges them. Why might someone be puzzled by our statement that “it then sorts these two subarrays”?

What will be an ideal response?