(Q).
Q: The burning of charcoal is what type of reaction? Choices: - condensation - physical - evaporation - combustion A:
(A).
combustion

(Q).
Q: Mammals belong to which class of vertebrates? Choices: - agnathas - chondrichthyes - placoderms - endothermic A:
(A).
endothermic

(Q).
Q: What basic plant structure can add support and anchorage? Choices: - lower leaves - soils - stems - roots A:
(A).
roots