Which of the following is a true statement?
a. more burial of organic carbon in sediments results in more oxygen in the atmosphere and oceans.
b. more photosynthesis leads to more oxygen in the atmosphere and oceans.
c. longer food chains with more consumers lead to more oxygen in the atmosphere and oceans.
d. more volcanic co2 emission leads to more oxygen in the atmosphere and oceans.

Which animal is a producer in this ecosystem

Which best describes this behavior? it is beneficial only to the males that do not fertilize eggs. it is beneficial only to the female workers that are not fertilized. it is beneficial to each one of the individual colony members. it is beneficial to the whole species, but not to all of the individual members.

Subduction zones form when an oceanic plate collides with another oceanic plate or continental plate. the continental crust is lighter and less dense than oceanic crust. continental crust's density is approximately 2.7 grams per cubic centimeter. oceanic crust is thinner and the average density is about 3.3 cubic centimeters. when the two crustal plates converge the oceanic plate always bends and subducts beneath a continental plate. once the oceanic crust subjects, the rocks are subjected to changes in heat and pressure. because of this, we would expect to find rocks in the area of a subduction. a) clastic b) igneous c) metamorphic d) sedimentary