The correct answer is Both 1 and 2 /hint - ​ The second-order of relief in the ocean basins comprises continental rises, slopes, abyssal plains, mid-ocean ridges, submarine canyons, and trenches of subduction. /imp The product of plate collision or divergence is the second-order relief features. Where plates diverge from one another, rifts form. If parallel rifting occurs, rift valleys can form, such as the African Great Rift Valley. Rifting as magma pours out of the rift may be followed by volcanic activity. As a result of the rift that created the Great Rift Valley of Africa, Mount Kilimanjaro was formed. Continental characteristics include continental masses, mountain masses, plateaus, plains, and lowlands, which are graded in the second order of relief. /key On the surface of a planet or moon, a volcano is an opening that allows material warmer than its surroundings to escape from its interior. Mauna Loa typifies a shield volcano, which is a huge, gently sloping landform built up of many eruptions of fluid lava. Volcanoes are commonly located where there are diverging or converging tectonic plates, and most are found underwater. Volcanoes are closely associated with plate tectonic activity.