1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vodka [1.7K]
3 years ago
11

What are earthquakes?

Biology
1 answer:
hichkok12 [17]3 years ago
5 0
An earthquake is the perceptible shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's crust that creates seismic waves.
You might be interested in
Which picture below is showing DNA polymerase making more DNA
dlinn [17]
No pic dummy .......
7 0
3 years ago
Sienna made a chart listing characteristics of two kinds of echinoderms.
KIM [24]

Answer:

all of these are echinoderms

6 0
3 years ago
Read 2 more answers
What are the role of all four types of lipids: fats, phospholipids, waxes, and steroids.
ycow [4]
Steroids
are complex structure four connected rings of carbon atoms. They are cholesterol which is in all body cells and used to synthesize other steroids:sex hormones, such as estrogen, and testosterone and several hormones from the adrenal glands.

Waxes
are comprised of an ester of a long-chain alcohol and a fatty acid. Many plants have leaves and fruits with wax coatings to help prevent water loss.

Phospholipids
consist of Glycerol portion and fatty acid chains. Only two fatty acids chains; in place of the third is portion that include a phosphate group. THe phosphate portion is soluble in water [hydrophobic] forms the ''head'' of the molecule, while the fatty acids portion is insoluble in water [hydrophobic] and forms a ''tail''.

Fats
to store energy for cellular activities. Carbohydrates fat molecules are composed of carbon, hydrogen and oxygen atoms.


6 0
3 years ago
Which of the following is NOT TRUE about blood pressure?
BabaBlast [244]

Answer:

c.Hypotension indicates good health

6 0
3 years ago
What is the main cause of an aurora
Phoenix [80]

When charged particles from the sun strike atoms in Earth's atmosphere, they causeelectrons in the atoms to move to a higher-energy state. When the electrons drop back to a lower energy state, they release a photon: light. This process creates the beautiful aurora, or northern lights

7 0
3 years ago
Other questions:
  • When a sperm and an egg unite, a _________________ is formed?
    10·1 answer
  • What's called the step by step procedure when conducting an experiment ?
    8·1 answer
  • Describe how a scientist using the phenic system would classify an organism.
    5·1 answer
  • What do all cell types have in common? Choose more than one answer.
    6·2 answers
  • In three to five sentences, compare systems for digestion in an amoeba to those in a mouse. What specializations exist in the bo
    6·1 answer
  • The needle of a magnetic compass point towards the
    14·2 answers
  • In what vessel is blood pressure the highest? the lowest? in what vessel is blood flow rate the fastest? the slowest?
    5·1 answer
  • Which elements make up the empty space in the universe?
    8·2 answers
  • 95% of plastics in the ocean are
    13·1 answer
  • \What did you have to do to turn an atom that is labeled “+ion or -ion” into a “Neutral Atom”?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!