Glencoe Online Science Quiz Chapter

The Paleozoic Era

Practice Test


	1.	Which of these are indirect evidence of plant or animal life?

		a.	original hard parts
		b.	trace fossils
		c.	altered remains
		d.	microfossils


	2.	What causes the type of sedimentation shown at the far right of the figure?

		a.	clay-rich sediments
		b.	sand-rich sediments
		c.	gravel-rich sediments
		d.	carbonate-rich sediments


	3.	How is climate different than weather?

		a.	Weather is more variable.
		b.	Climate describes the long-term weather patterns.
		c.	Weather is easier to predict.
		d.	Climate describes only the average weather.


	4.	The oldest rocks on Earth are __________.

		a.	3.96 to 3.8 billion years old
		b.	3.5 billion years old
		c.	1.6 to 1.8 million years old
		d.	1 to 2 billion years old


	5.	Why don't Archean and Proterozoic rocks have iron oxides?

		a.	there weren't any stromatolites at that time
		b.	there wasn't any iron in rocks of that age
		c.	there was too much iron to be oxidized
		d.	there wasn't any free oxygen in the atmosphere


	6.	What supercontinent is shown in the figure?

		a.	Pangaea
		b.	Laurentia
		c.	Gondwana
		d.	Rodinia


	7.	What evidence supports the hypothesis that Earth is 4.6 billion years?

		a.	all of the above answers are correct
		b.	the age of rocks from the Moon
		c.	the age of zircon grains in granitic crustal rocks
		d.	the age of meteorites


	8.	Petrified wood is an example of __________.

		a.	an index fossil
		b.	original hard parts
		c.	a mold
		d.	permineralization


	9.	What did organisms of Earth's first 4 billion years have in common?

		a.	They were photosynthetic.
		b.	They breathed oxygen.
		c.	They were single-celled organisms.
		d.	They were multi-celled organisms.


	10.	What type of technology is used to map the ocean floor?

		a.	submarines
		b.	UV radiation
		c.	GPS
		d.	sonar


	11.	Why is the beginning of the Cambrian called the Cambrian explosion?

		a.	because of the intense volcanic activity
		b.	because there was a significant increase in the diversity of life
		c.	because there were still a significant number of meteor impacts
		d.	because there were only active margins


	12.	Which fossil shown in the figure would be most likely found in shale deposits? Click here for figure

		a.	Valvulineri californica
		b.	Bolivina granti
		c.	Bolivia marginata multicostata
		d.	Hanzawaia boueana


	13.	__________ are the building blocks of proteins.

		a.	Cyanide molecules
		b.	Amino acids
		c.	Formaldehyde molecules
		d.	DNA and RNA


	14.	Reptiles evolved from amphibians and developed __________.

		a.	an amniotic egg
		b.	better vision
		c.	a jaw with fewer teeth
		d.	a more-developed hip-bone


	15.	In what tectonic event did Avalonia collide with Laurasia?

		a.	Larimide Orogeny
		b.	Caledonian Orogeny
		c.	Taconic Orogeny
		d.	Acadian Orogeny


	16.	The velocity of sound in water is __________.

		a.	4500 m/s
		b.	1,000,000 m/s
		c.	1454 m/s
		d.	140 m/s

17.

According to the table, which of these climates are most likely to be found near the equator?

Type of Climates	Description	TitleDefining Characteristics
Tropical climates	Tropical wet	High temperatures year round High rates of precipitation
Tropical climates	Tropical wet and dry	High temperatures year round Wet summers, dry winters
Mild climates	Marine west coast	Cool summers, mild winters Abundant precipitation
	Mediterranean	Warm summers, mild winters Moderate precipitation
	Humid subtropical	Wet, warm summers Dry, cool winters
Dry climates	Semiarid	Scarce vegetation Little precipitation
Dry climates	Arid	Very scarce vegetation Very little precipitation
Continental climates	Warm summer	Warm summers, relatively cold winters Moderate precipitation
	Cool summer	Cool summers, relatively cold winters Moderate precipitation
	Subartic	Cold summers, cold winters Moderate precipitation
Polar climates	Tundra	Cold year-round Scarce vegetation
Polar climates	Ice cap	Very cold year-round No vegetation
High elevation	Highlands	Variation of polar climate on mountains
High elevation	Uplands	Variation of polar climate on high plateaus

		a.	high elevation
		b.	polar climates
		c.	mild climates
		d.	tropical climates


	18.	The inner and outer core, mantle, and crust of Earth all have __________.

		a.	been rigid since the formation of Earth
		b.	different densities
		c.	have the same specific gravity
		d.	the same densities


	19.	A vertical sequence of limestone-shale-sandstone is evidence of __________.

		a.	a transgression
		b.	a passive margin
		c.	an orogenic event
		d.	a regression


	20.	What was the original composition of Earth's atmosphere?

		a.	water vapor and methane
		b.	nitrogen and carbon dioxide
		c.	hydrogen and helium
		d.	ammonia and hydrogen