Arefrigerator is used for keeping food fresh for a long period of time, and fresh food is good. Given these facts, what appliance can keep food good a long time among the following options: - toaster - Fuel cells - Cooking - a hydraulic system - an electric stove - oven - refrigerator - vacuum cleaner
refrigerator

(Question)
An electrical insulator slows the transfer of electricity, and plastic is an insulator of electricity. Given these facts, what slows the transfer of electricity? among the following options: - the skin - cold air - silver - copper - sweating - water - toxins - plastic
(Answer)
plastic

Ques: Hormones are chemical messengers that control many body functions, and vitamins function as catalysts in chemical reactions in the body. Given these facts, what are chemical messengers that are catalysts in the body among the following options: - allow growth - acetic acid - fibers - photons - fever - hormones - proteins - genes
Ans: hormones

(Q).
Flowers produce spores that develop into gametophytes, and daffodils are very nice flowers. Given these facts, what produces spores that develop into gametophytes among the following options: - Leptospirosis - bushes - orchids - graptolites - ferns - cacti - Chlorophyll - daffodils
(A).
daffodils

Ques:Acavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone, and limestone caves are formed when acids attack and dissolve the calcite in limestone. Given these facts, what are caverns formed from among the following options: - storing water - streams - fossil fuels - limestone - streams. - Rocks - crust - mines

Ans:limestone

Question: Mollusks are invertebrates such as the common snail, and abalone are marine snails. Given these facts, which is an invertebrate mollusk among the following options: - ferns - Newton - a fish - Ant - tortoises - Swordfish - Abalone - Crab
Answer:
Abalone