In the following passage some of the words have been left out. Read the passage carefully and choose the correct answer for the given blank out of the four alternatives. The conditions ______ which democracy can _______ are _______ to ________ ; but one thing is _______ that democracy is always a slow growth, whereas dictators may _____ to ______ and _______ a new _______ with dramatic success, under _______ conditions. a new _______ with dramatic success
PAL and SECAM are standards used in other countries. RGB stands for red, green, and blue - the colors of light used to create an image in a color tv set and is often used as a format name for computer monitors.
The yo-yo was first used by hunters as weapons. They were wooden disks on strings. In the 1920s, a man from the U.S. named Donald Duncan made the yo-yo into a toy after he visited the Philippines.
4. Which of the following is concerned with the study of characteristics, origin and development of land forms?