Select the correct answer. Which description is most comparable to the convection currents that exist in Earth’s mantle?
A.
hot air rising and cold air sinking
B.
cold water rising and hot water sinking
C.
the Sun rising and then setting 14 hours later
D.
random distribution of temperatures
E.
hot air sinking and cold air rising

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

Electromagnets coils of wire paper clips picked up 10 3 15 6 20 9 25 12 ms. owens' class was studying magnets. ms. owens showed her students how to make an electromagnet using a nail, a d-cell battery, and plastic coated wire. the students wrapped the wire around the nail and then attached the ends to the battery. when they were finished, they tested their magnets by investigating how many paperclips their magnets could pick up. they also tested whether they could increase the strength of their electromagnets by using more coils of wire. they recorded the class average of their results in the data table seen here. ms. owens asked her students to graph their data in a line graph. how should the students label the x-axis on their line graph? a) size of battery b) number of paper clips c) number of coils of wire d) strength of electromagnet

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.