The correct answer is option-D
The fossil record shows species suddenly appearing and disappearing. When one species goes extinct, another one usually takes its place. It provides with the snapshots of the past. It shows the changes over the past four billion years. It maybe unclear at parts but it does provide evidence that life is old and over time has changed. By studying fossil record the relation of different plants and animals can be figured out and it also tells us how old life is on earth. We can learn about extinct species and find out the reasons as well behind there extinction.
Answer:
Where two tectonic plates converge, if one or both of the plates is oceanic lithosphere, a subduction zone will form. An oceanic plate will sink back into the mantle. ... But as it spreads away from the ridge and cools and contracts (becomse denser) it is able to sink into the hotter underlying mantle.
Explanation:
stay safe
Compounds are made up of two or more elements which are chemically bonded. The elements and the properties of the compound are different. Exposure to light and chemical reaction can break compounds into elements. Compounds are only chemically separated not physically. The mass of elements determined the mass of the compound.
