What happens when boulders are piled in front of homes built on the beach?
a. ?The waves erode the sand below the boulders.
b. ?The boulders are washed out to sea by the waves.
c. ?The boulders protect the homes from the waves more or less permanently.
d. ?The waves push the boulders closer and closer to the homes.
e. ?The waves push the sand around the boulders inland to form dunes.
ANSWER: a
You might also like to view...
Without greenhouse gases, Earth's average temperature would be about ________.
A. 15°C B. 0°C C. -40°C D. -18°C
Particles that serve as surfaces on which water vapor may condense are called ____
A) hydrophobic nuclei B) nacreous nuclei C) condensation nuclei D) scud
Which type of radioactive particles has the longest half-life?
A) a emitters B) b emitters C) g emitters D) There is no relationship between half-life and the type of radiation.
Which of the following was NOT a consideration for Constantine in moving the capital of the Roman Empire from Rome to Constantinople?
A) The new capital had an excellent harbor B) Building a new capital allowed Constantine to send the message that his was a new era for the Roman Empire C) The new capital was close to the Danube frontier, a trouble area that required the emperor's attention D) Constantine received a vision from God, advising him to build a new capital