Number 3 is microorganisms.
Answer: The correct option in blank is anion.
Explanation: Ionic compound is formed by the transfer of electron from one atom to another atom. When an electropositve atom lose an electron it form cation, whereas as anion is formed when an atom gain an electron. These actions and anions then attract each other and form an ionic compound.
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Example: The formation of NaCl is best example of ionic compound. Na has one electron in its outer most shell which can easily be removed to form Na+, while Cl has seven electron in its outer most shell so it can easily gain an electron lost by Na to form Cl-. Then these ions attract each other and form NaCl as shown in the figure.
Explanation:
In a freshwater aquatic ecosystem like a pond, the organisms in the food chain include algae, small animals, insects and their larvae, small fish, big fish and a fish-eating bird or animal
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<span>I personalilty believe that there is four major negative impacts of technology
-Technology Can Put Privacy and Safety at Risk
- </span><span>More Use of Technology with Less Physical Activity Leads to Obesity
- Technology changes the way children feel and think
- CYBERBULLYING </span>