Qis forQuestion mark
A question mark is a punctuation mark used in writing to indicate a question. When you're speaking, you ask a question by raising your tone of voice at the end of the sentence. Since writing has no tone, a question mark is used instead.
Scientific name: superorder: selachimorpha
Video: view
Sharks are a type of large fish that live in the sea. There are many different varieties of shark. Some eat smaller fish, some eat penguins and seals, and others eat the same way as large whales, by sifting out tiny sea animals from the water.
Sharks constantly grow new teeth, and can lose thousands in their lifetime. Their skeleton is not made of bone, unlike most fish and animals, but is made from something softer and more flexible called cartilage. In people, cartilage is found around the ends of our bones to make our joints easier to move.
A spark is a tiny piece of something, usually metal, that is glowing red-hot. Sparks are often made when you strike two surfaces together very hard and bits of one surface are broken off. The sparks in the picture were made by an angle grinder.
