4b) visual observations as the sample is brought near the side of the flame, in the flame, and out of the flame, 4c) odor as the fibres burn, 4d) characteristics of the ash including the colour and texture. 4e) The man-made fibers will decompose and melt. much quicker than either the animal or vegetable fibers.
Bluefin tuna swim in a holding pen in Australia. A conservation group has named three fish species that it says are at risk of extinction. The fish are threatened because of overfishing to meet the worldâs growing demand for food.
Butterfly fish Facts. Butterfly fish is a type of marine fish. There are 120 species of the butterfly fish that can be found in tropical and subtropical regions of the Indian, Pacific and Atlantic Ocean. Many people keep them as pets, which is not very simple because they require specific conditions of water.utterfly fish is an omnivore (eats both meat and plants). It eats different types of algae and seaweed, worms, small crustaceans and zooplankton. Butterfly fish usually swims in the shallow water (up to 65 feet), because it eats animals and algae that can be found in this section of water.