EOG Day Four

Scientists think that dolphins and whales may have evolved from a common ancestor. What evidence supports this hypothesis? 

• They swim the same way
• they eat the same food
• They live in the same area of the ocean
• they have similar anatomies

In the winter, the fur of the arctic fox is white. In summer, the fur darkens to a reddish brown. What most likely causes the fur of the fox to change color?

• the amount of sunlight present
• the fox's habitat
• the fox's genes
• the fox's age

Which would best allow a species to survive environmental changes? 

• similar physical features
• low mutation rate
• small population
• genetic diversity

How would smoking tobacco most likely have a negative impact on the ability of an individual to succeed at physical activities? 

• it interferes with balance and coordination
• it decreases the ability to make decisions rapidly
• it decreases stamina and cardiovascular activity
• it decreases the speed and power of muscle contractions

How does a balanced chemical equation satisfy the Law of Conservation of Mass? 

• During a chemical reaction, the total amount of matter stays the same. 
• During a chemical reaction, matter is destroyed. 
• During a chemical reaction, one or more new substances are formed. 
• During a chemical reaction, the total number of atoms increases. 

Which is a problem with using wind turbines to produce energy? 

• Wind turbines are only efficient in certain areas
• wind turbines occupy a small amount of land
• wind turbines produce a large amount of energy
• wind turbines create a large amount of pollution

Which factors have the greatest effect on the health of a river system

• type of soil and salinity
• nitrate levels and turbidity
• human consumption and pH
• natural disasters and tidal changes

Which best describes the characteristics of a river basin?

• the land drained by a river and its tributaries 
• the land formed when rivers create estuaries and marshes 
• the land at the mouth of a river where water flows into the ocean 
• the land formed as a result of a river flooding 

In the United States, which is responsible for ensuring the safety of the country’s drinking water? 

• Environmental Protection Agency (EPA)
• Food and Drug Administration (FDA)
• National Oceanic and Atmospheric Administration (NOAA)
• Center for Disease Control (CDC)

Which statement best describes the Law of Superposition? 

• Each sedimentary layer of rock represents 1,000 years of Earth’s age, much like the rings of a tree. 
• In undisturbed layers of sedimentary rock, the upper rock layers are older than the lower rock layers. 
• In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks. 
• Rocks that form near volcanoes are older than surrounding rock.