Answer:
Green house effect and human activity.
Explanation:
-The green house effect: Some gases in the atmosphere trap the heat and doesn't allow it to scape making the Earth warmer.
-Human activity: The industrial activities have increased the carbon dioxic levels that have contributed to the higher temperatures. Also, deforestation, fluorinated gases and fertilisers containing nitrogen have contributed to climate change.
Answer:
d) The lithosphere is broken into sections called plates.
Explanation:
Plate tectonics is the movement of the lithosphere and is responsible for such phenomena as volcanoes and earthquakes. The lithosphere is the exterior layer of the earth about a hundred kilometers thick. This layer is broken into large sized plates, about seven medium plates and numerous smaller plates.
These plates move a couple of inches every year from each other and are the cause of volcanoes and earthquakes.
Answer:
Option C.
Volcanoes are associated with subduction and a convergent plate boundary
Explanation:
Subduction zone in volcanism occurs in a situation where two tectonic plates are converging on one another. One plate which contains oceanic lithosphere descends beneath the adjacent plate. This makes the oceanic lithosphere to be consumed into the crust.
Most Volcanoes in Hawaii are formed through subduction. This is shown by the presence of subduction zones in the region.
Thus option C is correct
