WAEC Past Questions and Answers - Page 3459

One of the structural adaptations of mammals for movement on land is the development of the

Which of the following statements is true about mutation?

Which of the following statements distinguishes thermal conduction for convection?

i. Conduction requires a material medium while convection does not
ii. In convection, there is actual motion of hot material, while in conduction, molecules molecules vibrates faster about their mean positions
iii. Conduction takes place in solids while convection takes place in fluids.

The ice and steam point on a mercury-in-glass thermometer are 10cm and 30cm respectively. Calculate the temperature in degree Celsius when the mercury meniscus is the 14cm mark

Mechanical energy can be either