DSR Week 29

Fossil A is found in a rock layer above a layer containing Fossil B. Which fossil is probably older?

• can't be determined

• both are the same

• Fossil B

• Fossil A

How does wind cause weathering?

• Blowing sand can wear away a rock's surface and break it into smaller pieces

• Wind picks up sand or dry soil and carries it from one place to another

• Wind can blow sand and create new landforms

• Wind can not cause the weathering of rocks

The most water, in liquid form is found

• Directly above earth's crust

• Directly above earth's core

• Deep below earth's mantle

• Deep below earth's crust

Shale is formed from clay, silt or mud particles that have been compacted together by pressure. What type of rock is shale?

• Extrusive igneous

• Intrusive igneous

• Sedimentary

• Metamorphic

The Summer solstice, the shortest day of the year in the Northern hemisphere, occurs when the Earth is in which position?

• D

• C

• B

• A

Which position represents spring in the northern hemisphere?

• D

• C

• B

• A

Having been here on Earth for a while, you know that in North America a year is made up of four seasons. The way the earth is tilted on its axis is one of the reasons for these yearly changes. This is because

• Earth is closest to the Sun in the summer, and far from the Sun in the winter

• Earth is closest to the Sun in the winter, and far from the Sun in the summer

• Earth is tilted towards the Sun in the summer, and away from the Sun in the winter

• Earth is tilted towards the Sun in the spring, away from the Sun in the fall

Which ocean landform is similar to a canyon (a deep valley with steep sides)?

• Plateau

• Sea mount

• Cavern

• Trench

Surface currents and waves are powered by

• boats and wind

• wind and heat

• heat and weather

• wind and tides

Water evaporates from Earth and then colls and returns to Earth as

• Cloud cover

• Condensation

• Precipitation

• Surface runoff