A Scientists are planning a way of writing extremely small letters, using xenon (Xe) atoms. If this system, you (be able) to write ten copies of the Bible on the area of a postage stamp. b Humans are among the few animals to have colour vision. If you (be) for example, you (see) c The brain works in two parts, the left side and the right side. Scientists can put one side of a horse, everything in black and white. the brain to sleep, and see what happens. For example, if they (turn off) right side of the patient's brain, the patient (not be able) the to sing, because musical ability comes from the right side of the brain. d Beetles are one of the most numerous species on the planet. In fact, if other insects and animals (not eat). beetles, in about a year and a hall the beetle population (weigh) as much as the whole Earth! e Parts of the body send messages to other parts of the body when they have to do things. For example, if you (not have) enough water in your body the brain (let) you know that you need more, by making you teel thirsty. f. If you (look) inside your ovn eye at the images there, they (be) upside down, and they (be) moving. g If you (smoke) ,chemical changes (take place) in your cells, which do not receive enough oxygen and die. h The world's oceans contain huge amounts of salt. In fact, if you (remove) all the It from the oceans. you (be able) to use it to build a wall about 300km wide and dlometre tall all around the Earth!​