Show:
Many Planets, One Earth
Atmosphere
Oceans
Ecosystems
Water Resources
100
How old is the solar system?
About 4.56 billion years old!
100
What is the atmosphere composed of?
nitrogen, oxygen, argon, water vapor, and a number of trace gases
100
How much of the ocean have we explored?
We explored 5% of the ocean
100
Land biomes are typically named for their characteristic types of...
Vegetation
100
Scientists widely predict that global climate change will have profound impacts on what?
the hydrologic cycle
200
What are the outer planets?
they are Jupiter, Saturn, Uranus, and Neptune.
200
The concentration of oxygen in the atmosphere is maintained by a balance between what two processes?
Photosynthesis: CO2 + H2O + light → CH2O" + O2 Respiration: CH2O + O2 → CO2 + H2O + energy
200
Why can't we explore the ocean?
Because of the pressure in the water.
200
Aquatic biomes (marine and freshwater) cover how much of Earths surface?
Three-quarters of Earths surface
200
On June 22, 1969, the Cuyahoga River in Cleveland, Ohio, caught fire because of what?
sparks ignited an oily slick of industrial chemicals on its surface
300
What element do use to live?
It's oxygen!!!!!!
300
What happens when atmospheric GHG concentration increases?
Earth temporarily traps infrared radiation more efficiently
300
Where are the biggest ocean trenches located?
The ring of fire
300
What is the difference between marine and freshwater biomes?
The oceans occupy large continuous areas, while freshwater habitats vary in size from small ponds to lakes covering thousands of square kilometers
300
Confined aquifers are less likely to be contaminated because of what?
impermeable layers above them prevent surface contaminants from reaching their water, so they provide good-quality water supplies
400
When was snowball earth?
it was about 2.3 billion years ago
400
What is a key factor weather and climate?
water
400
what is the The thermohaline circulation?
its a global conveyor belt
400
What do decomposers do?
break down wastes and dead organisms and return nutrients to the soil
400
How old can deep ground water be?
It can be millions of year old
500
How long was snowball earth?
it was about 650 million years.
500
What happens when a rising air parcel expands
it pushes away the surrounding atmosphere, and in doing this work it expends energy
500
What happens about every 7 years?
EL NINO !!!!!!!
500
Percentage wise, how much of our waters are in ice caps and glaciers?
About 2%
500
Materials with high porosity and high permeability, such as sand, gravel, sandstone, fractured rock, and basalt, produce good or bad aquifers?
They produce good aquifers