Earth Systems & Carbon Cycle
Name the 4 spheres/systems of the earth:
Hydrosphere, Geosphere, Biosphere & Atmosphere
Which of the following is true?
A. Cool burns increase CO2 emissions
B. Hot burns occur after long dry seasons
C. Hot burns decrease CO2 emissions
D. Hazard reduction burns are considered low-intensity fires
B. Hot burns occur after long dry seasons
1 AU (Astronomical Unit) is equal to distance between....
A. The distance between the earth and the moon
B. The diameter of our galaxy
C. The average distance between the the sun and the nearest galaxy
D. The average distance between the earth and the sun
D. The average distance between the earth and the sun
How many years ago did the big bang occur?
A. 12 billion years
B. 13.8 billion years
C. 14.2 billion years
D. 12.6 million years
B. 13.8 billion years
What are the 3 types of galaxies?
A. Elliptical, Spiral & Irregular
B. Spiral, Regular & Spherical
C. Pinwheel, Spiral & Elliptical
D.Whirlpool, Irregular & Spherical
A. Elliptical, Spiral & Irregular
Plants absorb ____ and release _____, as a result of photosynthesis.
Plants absorb Carbon Dioxide and release Oxygen, as a result of photosynthesis.
Which of the following is NOT true in regards to cultural burning?
A. It reduces bushfire risk
B. Increases fuel loads
C. Reduces Emissions
D. Recycles nutrients into the soil
B. Increases fuel loads
What is the approximate diameter of the milky way?
A. 100,000 light years
B. 200,000 astronomical units
C. 10 million km
D. 150,000 light years
A. 100,000 light years
Cosmic Microwave Background Radiation is defined as...
A. Radiation from the sun
B. Heat from a nearby galaxy
C. Leftover heat from the Big Bang
D. Radiation from a distant galaxy
C. Leftover heat from the big bang
Which telescope project is located in
Australia?
a) Hubble Space Telescope
b) Square Kilometre Array Pathfinder
c) Keck Observatory
d) Very Large Telescope
B. Square Kilometre Array Pathfinder
Which of the following is used in carbon
sequestration (removing carbon from the atmosphere)?
A. Microwaves
B. Telescopes
C. Biomass
D. Lasers
C. Biomass
Hubble discovered that...
A. The universe is shrinking
B. The universe has always existed and will continue to exist.
C. The universe undergoes a continuous cycle or collapse and rebirth.
D. The universe is expanding
D. The universe is expanding
Which of the following is the definition of a galaxy?
A. Something invisible that must be there giving extra gravity
B. A giant cloud of gas and dust in space, often referred to as a stellar nursery where new stars are formed
C. A celestial sphere of gas held together by its own gravity.
D. A huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity.
D. A huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity.
What is Hubble's Law?
The farther away a galaxy is from us, the faster it is moving away.
What is described as the invisible “glue” holding galaxies together?
Dark Matter
Dead plant matter contributes to...
A. Photosynthesis
B. Respiration
C. Nucleosynthesis
D. Fossil fuel formation
D. Fossil fuel formation
Which of the following is NOT a greenhouse gas?
A. Nitrous Oxide
B. Water Vapour
C. Methane
D. Nitrogen
D. Nitrogen
A black hole forms from...
A. A Supernova
B. A White Dwarf
C. A Red Giant
D. A Planetary Nebula
A. A Supernova
The barcode or fingerprints that elements leave in the electromagnetic spectrum are called...
Spectral Lines
Redshift:
A. evidence that galaxies are moving closer together
B. explains the source of CMBR
C. evidence that galaxies are moving further apart
D. Disproves the big bang theory
C. evidence that galaxies are moving further apart
The products of respiration are..
A. Water, Glucose & Carbon Dioxide
B. Energy, Carbon Dioxide & Oxygen
C. Carbon Dioxide, Energy & Water
D. Glucose & Oxygen
C. Carbon Dioxide, Energy & Water
What is the greenhouse effect?
The greenhouse effect is the trapping of heat in Earth’s atmosphere by greenhouse gases like carbon dioxide. It is important because it keeps Earth warm enough to sustain life.
Define a black hole.
A region of space where gravity is so strong that nothing, not even light, can escape.
Which is the correct order of events (left to right( in regards to the big bang theory?
A. Stars are formed, cosmic inflation, galaxies are formed, formation of hydrogen and helium atoms.
B. Formation of hydrogen and helium atoms, stars are formed, galaxies are formed, cosmic inflation
C. Cosmic inflation, formation of hydrogen and helium atoms, stars are formed, galaxies are formed
D. Formation of hydrogen and helium atoms, cosmic inflation, stars are formed, galaxies are formed
C. Cosmic inflation, formation of hydrogen and helium atoms, stars are formed, galaxies are formed
What is Dark Energy?
A. Ripples in space
B. The gravitational pull of a celestial object
C. mystery force speeding up the universe’s expansion
D. invisible “glue” holding galaxies together
C. mystery force speeding up the universe’s expansion