The most likely cause of the volcanic and earthquake activity in the Pacific Northwest is the collision of tectonic plates. This region is situated along the Cascadia Subduction Zone, where the Juan de Fuca Plate is subducting beneath the North American Plate, leading to significant geological activity.
The image below shows numerous volcanic mountains in the Pacific Northwest. What is the most likely cause of the volcanic and earthquake activity in this region? (1 point)
Responses
rising and falling tides in the ocean
rising and falling tides in the ocean
random abnormal weather occurrences
random abnormal weather occurrences
solar and lunar variations
solar and lunar variations
collision of tectonic plates
11 answers
The food web for a particular ecosystem is shown below. What would most likely happen if the grasshopper population had a major increase?(1 point)
Responses
The lizard population would not change.
The lizard population would not change.
The duck population would decrease.
The duck population would decrease.
The snake population would increase.
The snake population would increase.
The frog population would decrease.
Responses
The lizard population would not change.
The lizard population would not change.
The duck population would decrease.
The duck population would decrease.
The snake population would increase.
The snake population would increase.
The frog population would decrease.
If the grasshopper population had a major increase, the most likely outcome is that the snake population would increase. An increase in the grasshopper population would provide more food resources for snakes, potentially allowing their population to grow as well.
Cells are the basic units of life in living organisms. Which of the following components make up cells?(1 point)
Responses
atoms and molecules
atoms and molecules
atoms and tissues
atoms and tissues
molecules and organs
molecules and organs
tissues and organs
Responses
atoms and molecules
atoms and molecules
atoms and tissues
atoms and tissues
molecules and organs
molecules and organs
tissues and organs
The correct response is atoms and molecules. Cells are composed of various molecules, which in turn are made up of atoms.
Kelly has a sample of an unknown substance. Which properties of the substance will be the same no matter how large or small her sample is?
(1 point)
Responses
all of these
all of these
melting point, boiling point, and mass only
melting point, boiling point, and mass only
melting point, boiling point, conductivity, and density only
melting point, boiling point, conductivity, and density only
melting point, boiling point, conductivity, solubility, and density only
(1 point)
Responses
all of these
all of these
melting point, boiling point, and mass only
melting point, boiling point, and mass only
melting point, boiling point, conductivity, and density only
melting point, boiling point, conductivity, and density only
melting point, boiling point, conductivity, solubility, and density only
The correct response is melting point, boiling point, conductivity, solubility, and density only. These properties are intensive, meaning they do not change regardless of the size or amount of the sample.
Saturn's largest moon is Titan, shown below. Which of the following statements about Earth and Titan is true?
(1 point)
Responses
There is no gravitational force between Earth and Titan.
There is no gravitational force between Earth and Titan.
The gravitational force between Earth and Titan is less than that between Earth and Pluto.
The gravitational force between Earth and Titan is less than that between Earth and Pluto.
The gravitational force between Earth and Titan is more than that between Earth and Saturn.
The gravitational force between Earth and Titan is more than that between Earth and Saturn.
The gravitational force between Earth and Titan is less than that between Saturn and Titan.
(1 point)
Responses
There is no gravitational force between Earth and Titan.
There is no gravitational force between Earth and Titan.
The gravitational force between Earth and Titan is less than that between Earth and Pluto.
The gravitational force between Earth and Titan is less than that between Earth and Pluto.
The gravitational force between Earth and Titan is more than that between Earth and Saturn.
The gravitational force between Earth and Titan is more than that between Earth and Saturn.
The gravitational force between Earth and Titan is less than that between Saturn and Titan.
The correct statement is: The gravitational force between Earth and Titan is less than that between Saturn and Titan.
This is because gravity is dependent on the masses of the objects involved and the distance between them. Saturn is much more massive than Earth, and Titan is a moon of Saturn, so the gravitational force between Saturn and Titan is greater than that between Earth and Titan.
An observational field study allows scientists to gain information about how things occur or behave in nature. In what field of science would a scientist most likely perform an observational field study on how the rate of erosion is related to the widening of a river or stream?(1 point)
Responses
chemistry
chemistry
physics
physics
geology
geology
biology
Responses
chemistry
chemistry
physics
physics
geology
geology
biology
A scientist would most likely perform an observational field study on how the rate of erosion is related to the widening of a river or stream in the field of geology. Geology deals with the Earth's processes, including erosion, sedimentation, and the characteristics of landforms.