Radio communications were severely disturbed last week, and the local newspaper says that solar activity is to blame. which types of solar activity could the newspaper be talking about?
-sunspots and solar flares
-solar flares and prominences
-prominences and solar winds
-solar winds and sunspots

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.