The best answer would be B. Coral reefs should be preserved because it supports a wide variety of organisms. Coral reefs are one of the most economically important and biologically diverse ecosystems. They provide valuable and essential ecosystem services to a lot of marine organisms. They are to be preserved by all means because they are a source of food for some, coastlines are protected from storms, provide habitat, and is used for marine recreation.
Answer:
Oil
Explanation:
I just know lol but i took the test and got a 100 trust me
rhythm
stanzas
pay attention to placement
En economía, un cambio tecnológico es un aumento en la eficiencia de un producto o proceso que da como resultado un aumento en la producción, sin un aumento en la entrada. ... El teléfono es un ejemplo de producto que ha sufrido un cambio tecnológico.