In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives. Life is full of ______ types of experiences.Strange, in fact, are the ways of God.If a man is happy today, he may be ______ unhappy the very next day.Some ______ are pleasant and joyful while others are full of ______ and pain.If at one time a person finds himself on top of the world, at the ______ time he is depressed and downcast. Life is full of ______ types of experiences.
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?