What caused the oxygen levels in Earth’s atmosphere to increase during the Precambrian time? Choose the correct answer. Land plants evolved and released oxygen as they grew.

The chemical weathering of granite released large quantities of oxygen.

Oxygen dissolved in the ocean was released by osmosis into the atmosphere.

Cyanobacteria consumed carbon dioxide and released oxygen as a waste product.

In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.