Where is new ocean floor formed? at ocean trenches on the continental slopes at mid-ocean ridges on the continental shelves?

Option (3)

Explanation:

In a divergent plate motion, two lithospheric plates moves in opposite direction. Due to this motion, sea floor spreading takes place. Here the new materials are added to the ocean bottom along the mid oceanic ridge, where the magma comes out to the ocean bottom surface and immediately solidifies. Here the rocks are mostly basaltic in composition. One of the example is the Mid Atlantic ridge.

The rocks that are found near the mid oceanic ridge are the youngest, and the rocks that are found away from this ridge are the oldest rocks.

Hence, the correct answer is option (3).

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.