Son variaciones en los ecosistemas acuáticos por efecto del cambio climático: 1)Aumento del nivel del mar e inundaciones y deslizamientos de terrenos susceptibles.
Disminución de las playas que son el hábitat de muchas especies que nidifican en ellas.
2)Aumento de las temperaturas de las aguas y cambio de la composición química de las aguas
3)Efecto sobre el fitoplancton que es un constituyente esencial en las redes tróficas marinas.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

explanation:

okay now i don't know this but for the pints nothing else to say bye

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation:

yes, because even though a theory has a  lot of evidence to support it, it is not always true