Answer:
D
Explanation:
As bioindicators are the organism that indicate or monitor the health of the environment
I think it’s to long to fit in a period??
An acid is an ionic compound that produces positive hydrogen ions when dissolved in water. Acids taste sour and turn blue litmus paper red. A base is an ionic compound that produces negative hydroxide ions when dissolved in water. Bases taste bitter and turn red litmus paper blue.
Answer: 
Explanation:
a) 
: This is a non polar covalent compound which are held by weak vanderwaal forces of attraction.
b) 
: This is a covalent compound which is polar due to the presence of lone pair of electrons and are held by dipole-dipole forces of attraction.
c) : These are joined by a special type of dipole dipole attraction called as hydrogen bond. It forms between electronegative nitrogen atom and hydrogen atom and is the strongest interaction.
d) 
: This is a covalent compound and is non polar which are held by weak vanderwaal forces of attraction.
e) 
: This is a covalent compound and is non polar which are held by weak vander waal forces of attraction.
Answer:
Non-reactors
Explanation:
Kitchen wares should preferably be non-reactors to prevent them from reactiong with food.
Reactions between food substances and wares lead to production of untested and unsecure reaction results.
The production of this predictably hazardous results may result to food poisoning thereby threatening human life.
