Generally the biggest problems researchers encounter when conducting research in developing countries are related to ethical issues. There is often conflict between the ethical and moral standards of a given society and the researchers who will carry out the research, which makes it difficult and ambiguous to explain the cause of research without bumping into the dilemmas and cultural values of some community. However, some strategies may be used to ensure greater reliability and acceptability of research in some countries, some professional laws and codes may be used to attest to the protection of human dignity and to prevent scientific abuse. Historically, abuses and lack of professional ethics led to the creation of several codes of ethics. The Nuremberg Code, created in 1947 in order to protect human dignity in a research, guaranteeing the right to voluntary participation in a research can be cited as an example. as against physical and moral abuse.
Pros: If you have any document in written then you can easily preserve it, while on the other hand non-verbal communication doesn't have any proof as they cannot be preserved. You can easily access to written communication in future.
Cons: Written communication is time-consuming as the feedback is not immediate. The encoding and sending of message takes time. Effective written communication requires great skills and competencies in language and vocabulary use. Poor writing skills and quality have a negative impact on organization's reputation.
Sources of water pollution in southern Europe are organic minerals in the water such as pesticides, chemicals, hydrocarbon, and petroleum.
Your answer is: Pesticides, chemicals, hydrocarbon, and petroleum.
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The seashore is an inhospitable place for marine animals to live. Seawater has much less temperature variation throughout the year than air. In other words, during the summer in New York it can be 98˚F but the sea isn’t much warmer than 75˚F. In the depths of winter it can be –10˚F on land, but the water will be 48˚F. Animals that spend all their lives out at sea have a fairly steady environment. Those that are exposed to air at low tide, may face broiling hot temperatures in summer and freezing cold temperatures in winter. They may be soaked in fresh water when it pours with rain, and pounded by rough waves during a storm. Animals that can survive on the shore have to be tough! The higher the animals live up the shore the longer they are likely to be exposed to the land environmental conditions. On rocky shores this leads to bands of animals that are the best adapted to being exposed for that period of time. These bands are called tidal zones.
The Paleozoic Era, which ran from about 542 million years ago to 251 million years ago, was a time of great<span> change on Earth. The era began with the breakup of one supercontinent and the formation of another. Plants became widespread. And the first vertebrate animals colonized land. so its B</span>
