Worksheets7.2: Human Influence on Ocean (TEKS 7.11.B) A
Total questions: 16
Worksheet time: 24mins
Increases in ocean temperature cause a phenomenon in coral called coral bleaching, which can kill the coral. Which statement BEST explains how rising ocean temperatures impact the stability of the coral reef ecosystem that people rely on for food?
Artificial reefs are manmade structures that provide surfaces for algae and other invertebrates such as barnacles, to attach. In turn, these reefs attract fish and larger predators. Which statement describes a positive effect of artificial reefs on the ocean system?
These created habitats could increase the local shark population, which might increase the number of shark attacks on humans
The increased fish population may lead to overfishing on the coasts
Materials within the artificial reef could contain toxins that damage the marine ecosystem
There is an increase in biodiversity in the ocean system
Which is NOT an example of how humans depend on ocean systems?
Climate regulation
Source for natural resources
Excess carbon dioxide production
Transportation
Many people improperly dispose of motor oil. How could improper disposal of motor oil affect ocean systems?
The oil evaporates into the atmosphere and pollutes the oceans with acid rain
The oil becomes runoff pollution and flows into the oceans
The oil is absorbed by the ocean floor and can be mined again fro commercial use
The oil soaks into the ground and remains in underground aquifers
How have human activities modified ocean systems?
increased use of beaches increases the trash pollution the ocean.
Overfishing has caused fish populations to decline.
Oil from oil spills releases toxic chemicals into the water.
All of the answer choices
The table shows the numbers of fish caught by commercial fishermen near the coast of Texas. Which is the best explanation for the changes in the numbers of fish caught?
There were fewer fishermen in year 3 than in year 1
The fish populations are shrinking because of overharvesting
The fish have adapted and learned to avoid the fishermen's hooks
The fish have moved to new locations
Ms. Engleman is planning on building a marina complete with a boat house, 3 docks, and a fueling station. Although this may lead to ocean temps (a) and fish biodiversity (b) , she is going to hire her 7th grade class to (c) wetlands along the beach. This should lessen the environmental impact.
Choose whether the human impact on the ocean systems is a positive or negative effect.
Building an artificial coral reef.
Restoring costal wetlands.
Establishing a nature preserve.
Increassing shipping routes.
Drilling new off shore oil rigs.
Constructing a shipping port.
