General Knowledge
Q1
Spiders use ..... to weave their webs. This substance is a milky-type liquid that is released from a gland and changes into hair-like strands when it comes into contact with the air.
(*) silk
(*) sap
(*) mucus
(*) urine
Spiders use ..... to weave their webs. This substance is a milky-type liquid that is released from a gland and changes into hair-like strands when it comes into contact with the air.
(*) silk
(*) sap
(*) mucus
(*) urine
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