S1 Review

What do ice core samples in Antarctica reveal about Earth?

• Changes in the composition of the atmosphere

• Variations in the thickness of atmospheric zone

• The increasing and decreasing cycle of sea level

• The rate of surface ice melting due to global warming

Coral bleaching is evidence of what change?

• a decrease in sea level

• a decrease in ocean salinity

• an increase in water temperature

• an increase in dissolved carbon dioxide

Why is it important for scientists to study multiple systems on Earth at the same time instead of studying them separately?

• They save more time be studying similar parts of more than one system.

• They get better sense of what the boundaries of the systems are.

• They avoid errors because processes are similar in different systems

• They can observe how parts of the different systems affect each other.

Which of these occurs because of instability in Earth's atmosphere?

• Thunderstorms form and dissipate.

• A lake becomes warmer in daytime.

• Tectonic plates collide and form mountains.

• A boulder cracks when a tree root grows near it.

How do Earth systems interact with each other?

• through matter and energy

• through specific components

• through scientific models

• through nonspecific components

Which statement explains the type of system Earth is?

• It is an isolated system because it is separated in space from other objects.

• It is a closed system because energy but not matter flows into and out of it.

• It is an open system because both matter and energy flow into and out of it.

• It is a shielded system because its atmosphere reflects materials that strike it.

The banded iron formation is evidence for which of these statements about Earth 2.6 billion years ago?

• Green plants were unable to photosynthesize at that time.

• The locations of the oceans currents were much farther north.

• The atmosphere and oceans contained much less oxygen

• Bits of magnetite in the ocean produced Earth's magnetic field.

Rainwater washing away sediment on a hillside is primarily an interaction between which of Earth's spheres?

• biosphere and hydrosphere

• atmosphere and biosphere

• geosphere and atmosphere

• hydrosphere and geosphere

What are the primary elements that make up Earth's atmosphere?

• nitrogen and oxygen

• hydrogen and nitrogen

• oxygen and carbon dioxide

• carbon dioxide and hydrogen

How can you determine which way a river is flowing on a topographic map?

• It flows parallel to the curves on the map.

• It flows perpendicular to the curves on the map.

• It flows from lines that are closer to lines that are farther apart.

• It flows from lines that are farther apart to lines that are closer.