natural disasters
Which natural disaster is measured using the Richter scale and involves the shaking of the Earth's surface?
An earthquake.
What is the defining force that keeps the planets in orbit around the Sun?
Gravity
What are the large, moving pieces of Earth's lithosphere called?
Tectonic plates
According to the Law of Superposition, where are the oldest fossils found?
Near the bottom of the rock layers.
What is the primary molecule carrying genetic information in most organisms?
DNA
The magnitude of a natural disaster is proportional to what other factor?
larger magnitude or less frequently
How many planets are currently recognized in our solar system?
Eight.
where are volcanoes are mostly form
plate boundaries
If a fault breaks through several sedimentary layers, which is younger: the fault or the layers?
The fault is younger than the layers it breaks
What are different forms of the same gene called?
Alleles
What are the "5Ps" of emergency preparedness?
Plan, Participate, Protect, Prepare, and Practice.
Approximately how many billion years ago was the solar system formed?
4.6 billion years
On which layer do the tectonic plates float?
The crust
what is relative age?
Relative age compares layers to determine which is older or younger
How many chromosomes are present in a gamete of a house fly
6
Name top 5 dangerous Natural disasters
floods, earthquakes, tropical hurricane, tsunamis, and droughts
Which planet has a pole that experiences continuous sunlight for 42 years, followed by 42 years of complete darkness?
Uranus
What was the name of the ancient supercontinent?
Pangea
What specific piece of evidence eventually led scientists to learn what has caused the K-T boundary?
a meteor
Two parents with autosomal recessive albinism have a child who does not have albinism?
Genetic heterogeneity
how many tornadoes are there in a year?
1,225
Which planet's orbit was discovered through mathematical prediction before it was ever seen through a telescope?
Neptune
Who proposed the theory of seafloor spreading?
Harry Hess and Robert Dietz
Which layer in a cliff is typically the oldest?
The bottom layer.
What is a DNA segment called when it is exactly 1,000 base pairs long?
kilobase pair