Stars and planets is the correct answer
Answer:
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Answer:
Sand
Explanation:
Abiotic factors in an environment are all the non living organisms in an ecosystem. Fish, seaweed and a sea star are all biotic or living organisms in an ecosystem while sand is a non living organism in an ecosystem therefore it is an abiotic factor.
Answer: Naturalistic observation.
Explanation: In research study in which participants were fitted with electronically activated recorders so that researchers could sample their daily activities, researchers employed a scientific method known as naturalistic observation.
Naturalistic observation is a research method commonly used by psychologists and other social scientists, This technique involves observing subjects in their natural environment. It is a research method that involves studying the subject of interest in its own environment, as it would occur in day-to-day life. Researchers always strive not to influence the environment, as such changes may influence the result of the study.
'The Four Great Inventions of Ancient China' refers to paper, gunpowder, printing, and the compass. These four great inventions greatly promoted the development of China's economy, politics, and culture.
