The illustration below shows the food web of the polar bear. What would be the impact on the polar bear if the plankton numbers decreased due to global warming? (3 points) The image shows a food web involving a polar bear. Phytoplankton is present just below the surface of the water where the energy of the sun in the diagram penetrates the water and photosynthesis takes place. Arrows point from the phytoplankton down to the ocean floor, where there are organic deposits. The organic deposits have an arrow pointing to crustaceans. The crustaceans have an arrow pointing upward to small fish. Zooplankton is also present and has an arrow pointing toward the small fish. From the small fish an arrow points upward toward a sea lion, and then an arrow points upward from the sea lion to the polar bear.
© 2016 NOAA

Group of answer choices

The polar bear population would remain unchanged since polar bears do not eat plankton.

The polar bear population would remain unchanged because less ice would mean larger hunting grounds.

The polar bear population would increase because less ice would mean larger hunting grounds.

The polar bear population would decrease due to fish populations decreasing.

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.

very

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .