1) The first successful consumer digital camera, the Apple QuickTake 100, was released in 1994 and had a resolution of 640 x 480 pixels.

2) The Industrial Revolution, which began in the 18th century, brought about significant changes in agriculture, manufacturing, mining, and transportation.

3) Cows have best friends and can become stressed if they are separated.

4) The Great Barrier Reef in Australia is the largest living structure on Earth and can be seen from space.