Human Impact
Scientists want to save an area that is close to desertification. Assuming that area receives sufficient precipitation, which strategy would be best?
A. Add nutrients to the soil.
B. Allow cows to graze in the area.
C. Plant more crops.
D. Plant more trees.
Plant more trees.
Which property indicates a star's temperature?
A. size
B. color
C. composition
D. brightness
Color
phases
What is responsible for the intense heat and pressure in the sun's core?
A. convection currents circulating
B. gravity pulling materials together tightly
C. radiation
D. light-years
gravity pulling materials together tightly
What is the name of when the continents were all connected in one supercontinent?
Pangaea
Which of the following is NOT considered a natural resource?
A. organisms
B. water
C. soil
D. plastic
plastic
What is the name of the explosion that began the universe?
Big Bang
If you are standing at a beach on Earth at the same time that the shadow of the moon falls across your location, what event would you be able to witness at that time?
A. solar eclipse
B. lunar eclipse
C. low tide
D. full moon
solar eclipse
Which of the following is not a layer of the sun's atmosphere?
A. corona
B. chromosphere
C. photosphere
D. solar flare
solar flare
What is the name of the theory that the Earth's crust is made up of seven large plates and many other small plates?
A. Theory of Gravitation
B. Theory of Evolution
C. Theory of Plate Tectonics
D. Continental Drift Theory
Theory of Plate Tectonics
Northern Florida has a thriving timber industry. People cut down trees to produce other resources that they need. The clearing of trees affects both the availability of this renewable resource and the organisms in the area. If a forest has all of it's trees cut down, which of the following impacts is MOST LIKELY to occur in this forest?
A. More organisms will come to live in the area now that there is more room.
B. All the plants in the area will die.
C. Soil will erode from the area due to the lack of tree roots.
D. The lack of trees will cause groundwater pollution.
Soil will erode from the area due to the lack of tree roots.
What is the term astronomers use to define all of space and everything in it?
universe
One astronomical unit is equal to the distance from the sun to ____________ which is approximately 150 million km.
A. Jupiter
B. asteroid belt
C. Earth
D. moon
Earth
Which of the following is NOT a layer of the sun?
A. convection zone
B. radiative zone
C. the core
D. photo zone
photo zone
A ___________is the place where two tectonic plates meet.
A. boundary
B. line
C. stress
D. limit
boundary
The Everglades was once considered an area suitable for development. Canals were built, water was diverted, and wetlands were converted for farming and homes. Which statement below BEST describes the cause for this development?
A. The water quantity and quality decreased.
B. Wildlife habitats were destroyed.
C. Saltwater replaced freshwater.
D. Human population increased.
Human population increased.
A planet's period of revolution is the amount of time it takes for the planet to orbit the sun. Which of the following holds a planet in its orbit around the sun?
heat, gravity, solar wind, or visible light
gravity
___________ is the spinning of a planet on its axis.
A. revolution
B. rotation
C. radiation
D. inertia
rotation
A planet's period of revolution is the amount of time it takes for the planet to orbit the sun. Which of the following holds a planet in its orbit around the sun?
A. heat
B. gravity
C. solar wind
D. visible light
gravity
______________ is a source that acts on rock to change it's shape or volume.
A. fault
B. boundary
C. stress
D. limit
stress
As the population of a city recently grew, so did the number of cars and industries in the area. The local news started to post air quality warnings. What MOST LIKELY caused the need for air quality warnings?
A. The removal of trees let to increased soil erosion.
B. The level of carbon monoxide increased as people heated their homes.
C. More cars and industry let to increased carbon dioxide and nitrogen oxide emissions.
D. As the population grew, more people wanted to know about air quality.
More cars and industry let to increased carbon dioxide and nitrogen oxide emissions.
What is the distance that light travels in one year called?
A. minute
B. light-year
C. days
D. astronomical unit
light-year
_______________ is the movement of an object around another object.
A. revolution
B. rotation
C. radiation
D. inertia
revolution
The sun contains ___________of the mass in the solar system.
A. a quarter
B. half
C. 3/4
D. most
most
Ground movements that occur when tectonic plates move suddenly and release energy are called _____________.
A. volcanoes
B. earthquakes
C. oceans
D. tornadoes
earthquakes
_________________ is a rock fracture (or split) that shows evidence of relative movement.
A. boundary
B. fault
C. stress
D. limit
fault
Small, solid pieces of material that comes from rocks and the remains of organisms is called what?
A. crystals
B. sediments
C. pebbles
D. rocks
sediments