<span>Dense layer holding in natural gas and petroleum</span>
The capsid surrounds the virus and is composed of a finite number of protein subunits known as capsomeres, which usually associate with, or are found close to, the virion nucleic acid
The answer is Habitat. The brackish water environment is formed due to the mixing of fresh water from the river with the salty waters of the ocean. This habitat is significant for fishes that come to spawn and feed. Crabs, mosquitoes and birds can also be found in this environment.
The organism would be a secondary consumer and a carnivore. An example could be an snake in the following food chain: grass -> bunny -> snake
The correct answer is - lung cancer.
The asbestos is a material that has been used very often in the past, mostly for making water pipes and roofs. Few decades ago it was proven that the asbestos actually breaks down into microscopic little pieces that are extremely dangerous. This little pieces, if inhaled, can gradually result in the development of a lung cancer. Because of what the research had shown, lot of people and institutions were in panic, so urgent and quick measures were taken in order to change the water pipes and the roofs.