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Because it's oil and oil always sits on top of water
Answer:
a) Secretion of unpleasant liquids which make them distasteful.
Possession of spines or thorns or irritating hairs which cause pain or irritation on contact.
Possession of poisonous parts which cause pain or itching or death or swelling on contact.
b) An anion is a negatively charged atom (or group of atoms).
OR
An anion is an ion formed when an atom (or group of atoms) gain electrons.
c) i. NH4OH and dilute HCL.
= Ammonium chloride, water
ii. CACO3 and dilute HCL.
= Calcium chloride, water, carbon dioxide or carbon (IV) oxide.
Hope it helps. Please mark as brainliest.
1) Independent variable is the physical properties
2) Dependent variable is the pH of the solution.
You can change the physical properties (independent variable) to get a different pH value(dependent variable)
