Trenches are formed by subduction. Trench are very deep, elongated cavities which border a continent or an island. Trenches are formed when one tectonic plate slides beneath another. When an ocean plate collides with another ocean plate then one plate will bend and slide under the other. This process is called subduction.
Oceanic trench is a deep canyon on the ocean floor that occurs where one tectonic plate subducts under another.
Oceanic trench form where the old ocean crust from one tectonic plate is pushed beneath another plate, raising mountains, causing earthquakes, and forming volcanoes on the seafloor and on land.
The protein inside (a) red blood cells that carries oxygen to cells and carbon dioxide to the lungs is (b) hemoglobin. Hemoglobin is made up of four symmetrical subunits and four heme groups. Iron associated with the heme binds oxygen.
Every ecosystem needs most of the types, such as producers and herbivours, but different animals need different climates, such as cacti need deserts, yet fish need water, they can't( Or shouldn't ) Be in the same ecosystem due to thier needs.
The seasons are caused by the Earth tilting.The seasons change depending on the sunlight hitting the earth.For example:Winter happens when the hemisphere is tilted away from the sun.The earth rotates around the sun the whole year.Hope that helped.
