Michael and Isabella are working together on an assignment. They must search some illustrations to find an example of heat transfer by convection. Which illustration best represents convection?

A An illustration of heat being transferred by wind
B An illustration of heat being transferred by objects in contact
C An illustration of heat being transferred between rocks
D An illustration of the Sun’s heat moving through empty space

Which of the following is a homogenous mixture? o a. a toy box filled with toys o b. blood o c. trail mix o d. spaghetti and meatballs submit

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?

In science and physics what is the standard unit of measure for speed?