A. <span>Exposure to an antigen
Exposure to viruses and antigens led to the foundation of modern vaccination. Vaccination introduces an antigenic material that helps the ability of the immune system to adapt a specific pathogen, therefore leading to a long-term immunity.</span>
The new materials from the center of the Earth rises, so the hardens and pushes older pieces of the Earth away from each other, which causes the movement of materials.
<h3>
How do materials move within the earth?</h3>
The Earth's thermal energy is the main cause of the movement of materials within the earth surface. The Large continent-size plates moves slowly about the Earth's surface, which is driven by the thermal energy. The Convection currents transfer hot, buoyant magma to the lithosphere's layer at plate boundaries and hot spots. Convection currents also transfer denser, cooler material from the crust to Earth's interior through the process of subduction.
So we can conclude that: The new materials from the center of the Earth rises, so the hardens and pushes older pieces of the Earth away from each other, which causes the movement of materials.
Learn more about Earth here: brainly.com/question/746553
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Answer:
Metabolizma, organizmalardaki yaşamı sürdüren kimyasal reaksiyonlar kümesidir. Üç ana ... Bu ortak kimya, hücrelerin küçük bir metabolik set kullanmasına izin verir ... Organik bileşikler (proteinler, lipitler ve karbonhidratlar) karbonun çoğunu içerir ... İlk olarak, bir enzimin bir yoldaki düzenlenmesi etkinliği nasıl
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<span>Leather shoes are made from natural polymers; raincoats are made from synthetic polymers. </span>
