Explanation:
Aluminium is a metal from group 13. ... The acids in the pickle would react with aluminium forming hydrogen gas in excess. This will deteriorate the quality and taste of the pickle and would also harm the human body if consumed.
<span>Hay fever is a manifestation of allergic reaction
from pollen, which is prevalent during haying season. Hay fever is commonly
known as allergic rhinitis caused by an oversensitive immune system,
particularly the lymphocytes, leading to a misdirected immune response. The body
undergo a sensitization when one develops IgE antibodies and develop a strong
TH2 response against pollen. Then, this newly develop IgE antibodies sticks to
basophils and mast cells with no signs and symptoms yet. However, when one is
expose again to pollens, mast cells will be activated and release mediators who
are responsible for immediate vascular and smooth muscle reaction. After this, local
clinical manifestation of hay fever will be observed. </span>
Answer: chloroplasts
Explanation: chlorophylls give green pigmentation involved in photosynthesis.