i have to make a project on this topic, “Smart City Save City” using the concepts of electricity and magnetism. does anyone know what it means and what do i do for it?

Which incident would result in primary succession instead of secondary succession?

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic

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.