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
zzz [600]
4 years ago
13

What are the four most abundant elements, by volume, in earths crust

Biology
1 answer:
koban [17]4 years ago
5 0
Above the core is Earth's mantle<span>, which is </span>made<span> up of rock containing silicon, iron, magnesium, aluminum, oxygen and other minerals. The rocky surface layer of Earth, called the </span>crust<span>, is </span>made<span> up of mostly oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium.</span>
You might be interested in
An earthquake has just occurred. seismic waves from the earthquake are detected at two recording stations. at recording station
Law Incorporation [45]
Let be E the epicenter, a and b are the stations



     E                         a                             b
----/---------------------/-------------------------/------------

just after the earthquake has occured, waves must detected step by step, from a, then after from b, Ea < Eb, so , <span>b is farther from the epicenter than 
a.</span>
3 0
3 years ago
Read 2 more answers
An object in an electrical circuit resists the flow of energy called a
Arisa [49]
An object in an electrical circuit resists the flow of energy called a B. Resistor.

The name "resistor" implies that the resistor resists the flow of energy. We can calculate the amount of resistance across a resistor.
5 0
4 years ago
Name 3 reasons why recycling is bad
morpeh [17]
1. Air pollution would still be an issue since fossil fuel trucks that produce exhaust have to go pick up recyclable items and bring them back. Also, the recycling process itself produces a lot of pollutants from inside the factory. 

2. Contamination is also a huge obstacle in the recycling industry. Sometimes there are errors with sorting through recyclable stuff and let's say, for example, a spray can gets mixed in with other types of recyclables; it can contaminate the new products.

3. Most plastics can not be recycled. There are about seven types of plastic that we find and encounter on a day to day life, but only two of those plastics are recyclable. What isn't recyclable will be collected, processed, sorted and then thrown into a landfill. 

Hope this helps.
6 0
3 years ago
Which of the following medical technologies was developed as a spin-off of space technology? A. portable medical equipment B. x-
LuckyWell [14K]
I'm 90% sure that the answer is D). all of these
5 0
3 years ago
How many alleles for blood type in humans?
MrMuchimi

Answer:

four blood types, a, b, ab , and o,

8 0
4 years ago
Read 2 more answers
Other questions:
  • Scientists have discovered a galaxy at a distance of 600 billion kilometers from Earth. What is the distance, in AU, between the
    11·2 answers
  • Can someone help me plzzz
    8·1 answer
  • give 5 examples that can be push 5 examples that can be pull 5 examples that can be stretch 5 examples that can be turn
    6·1 answer
  • Control (treatment or procedure in an experiment that provides results to which all others are compared):
    7·2 answers
  • Study the characteristics of the channel in this picture. What might the river look like following this type of channel?
    13·1 answer
  • Which best defines cohesion?
    10·1 answer
  • The purpose of an experiment is to compare results with a(n)
    15·1 answer
  • Please help
    9·1 answer
  • Which of the following does not
    8·2 answers
  • Hypothesis: If cells are viewed under higher magnification, then more cell organelles will be seen.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!