Nitrogen (N), nonmetallic element of Group 15 [Va] of the periodic table. It is a colourless, odourless, tasteless gas that is the most plentiful element in Earth's atmosphere and is a constituent of all living matter. Boiling point: −195.8 °C (−320.4 °F)
Atomic number: 7 has five electrons in its outer shell, so it is trivalent in most compounds. Nitrogen is important for plant growth and can be 'fixed' by lightning or added to soils in fertilisers. A colourless, odourless gas. Nitrogen is important to the chemical industry. It is used to make fertilisers, nitric acid, nylon, dyes and explosives.
Answer:
Mimicry
Explanation:
Living organisms are known to be able to adapt to the natural environment in which they exist over time. One of the adaptation techniques is called MIMICRY. Mimicry is a type of physical adaptation whereby an organism (animal) looks similar in appearance to another organism in order to discourage or push away predators.
This is the case of the viceroy butterfly in this question, which has coloration that is almost identical to the poisonous monarch butterfly. Although, the viceroy butterfly is not poisonous but its coloration that looks like poisonous monarch butterfly makes it appear poisonous to predators. Viceroy butterfly is said to mimick the poisonous monarch butterfly in order to deceive predators.
Answer:
Photograph: bird's eye view of a site; interview: personal analysis and biased; tax records: limited accessibility; biography: unreliability of human memory.
Explanation:
There are generally always some drawbacks when considering different sources of historical information and a good researcher has to take these factors into account. Photographs are limited because they give you very little context. Interviews can be limiting because you get a personal view from just one individual. Tax records are likely protected due to privacy concerns and statutes. Biography can have drawbacks as well because the person may embellish past events or overemphasize the significance or attribute meaning in ways that are not entirely truthful or objective.
