I believe that the correct match will be;
Prominences- A
Sunspots - B
Solar flares - C
Convection -D
Prominence is a large, bright feature extending outward from the Sun's surface. Prominences are anchored to the Sun's surface in the photosphere, and extend outwards into the Sun's hot outer atmosphere, called the corona.
Sunspots are darker, cooler areas on the surface of the sun in a region called the protosphere. Solar flares are large eruptions of electromagnetic radiation from the sun lasting from minutes to hours.
Bone marrow transplant i think. I hope this helps but im not 100% sure
Answer:
gravity?
i hope im answering this right-
Explanation:
The answer is D. Old stone tools with be more classified as an ancient artifact where the others would be classified as fossils.