CBSE Class 7 Answered
(a) In summer, why do we find white patches on our clothes, especially in areas like underarms? (b) Describe the excretory products of birds and lizards.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
(a) On a hot summer day, we sweat a lot. Sweat contains water and salts. The water of sweat evaporates, leaving behind the salts which appear as white patches on our clothes.
(b) Birds and lizards excrete a semi-solid, white coloured compound, the uric acid.
(b) Birds and lizards excrete a semi-solid, white coloured compound, the uric acid.
Answered by | 04 Jun, 2014, 03:23: PM
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