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
il63 [147K]
2 years ago
6

Which of the following is found in large quantities in the Earth’s crust?

Biology
2 answers:
Harrizon [31]2 years ago
8 0

Answer:

A: Silicon

Explanation:

More than 90% of the Earth's crust is composed of silicate minerals, making silicon the second most abundant element in the Earth's crust (about 28% by mass) after oxygen. Ur Welcome.

Rama09 [41]2 years ago
3 0
Answer – A (Silicon)

Option A (Silicon) makes up 27.7% of the elements in the earth’s crust
Option B (Magnesium) makes up 2.1% of the elements in the earth’s crust
Option C (Nickel) is not found in earth’s crust.
Option D (Iron) makes up 5.0% of the elements in the earth’s crust

The earth’s crust basically contains eight (8) elements namely: Oxygen, Silicon, Aluminum, Iron, Calcium, Sodium, Potassium and Magnesium (Listed in order of abundance). The only element that is more abundant that Silicon in the earth’s crust is Oxygen, which accounts for 46.6%.
You might be interested in
What is the vocabulary word that describes gradual physical aging?
Rudik [331]

There are two types of aging, primary aging and secondary aging.

Anything that cannot be controlled is called primary aging, things that can be controlled such as physical factors, are called secondary aging.


Hope it helped,

BioTeacher101

7 0
2 years ago
Rising air makes clouds because the higher you go, the air gets ________ and cannot hold nearly as much water.
umka21 [38]
The answer is thinner. the air gets thinner :)
3 0
3 years ago
What accurately describes a difference between fungi and plants?
amm1812

Fungi are different from plants in that they are achlorophyllous.

<h3>Fungi vs plants</h3>

Fungi and plants are both eukaryotic in nature when it comes to their cells.

However, plants differ from fungi in that plants contain a green pigment known as chlorophyll while fungi do not. The green pigment enables plants to photosynthesize.

Thus, fungi are said to be achlorophyllous.

More on fungi and plants can be found here: brainly.com/question/1843408

#SPJ9

4 0
2 years ago
Answer correctly 50 Points
Natali [406]

1. The main aim of the Human Genome Project was to determine the DNA Sequence of every human gene.

2. Variation in skin colour is an example of polygenic inheritance

This Human Karyotype is unusual because it has an extra chromosome at chromosome 21.

Klinefelters syndrome is shown in the second figure

Explanation:

1. The Human Genome Project's main goal was to sequence all the 30,000 genes and 3 million base pairs in their makeup for the early detection of diseases, gene therapy and molecular level studies.

2. Human skin colour is determined by the pigment melanin. The Dominant allele is responsible for dark colours as it produces more melanin. The melanocortin 1 receptor (MC1R) gene and Tyrosinase enzyme codes for the human skin colour. Polygenic inheritance are the traits which are controlled by one or more genes.

<u>figures:</u>

<u>The extra chro</u>mosome at the 21st chromosome pairs is called trisomy 21 or Down's Syndrome. It is due to the abnormal cell division/meiosis resulting in an extra X chromosome. This leads to thechanges the in physical development of  the individual.

Klinefelter's Syndrome: There are 47 chromosomes and 2 or more X chromosomes in this syndrome of males. The resulting male suffering from Klinefelter would be sterile and have poorly developed testicles.

7 0
2 years ago
People are more affected by technology than science because technology _____.
ziro4ka [17]
People like to do more stuff on a screen than they dont think that science is everywhere but they are to busy on their phones to notice.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of these is true for both photosynthesis and cellular respiration?
    9·1 answer
  • What are the three pairs of salivary glands?
    7·1 answer
  • What comes first hen or egg
    11·2 answers
  • Examine the air pressure map.
    5·2 answers
  • What property is this<br><img src="https://tex.z-dn.net/?f=5x%20%2B%2015%20%2B%202x%20%3D%204x%20%2B%209" id="TexFormula1" title
    15·1 answer
  • Which of the following releases energy?
    11·2 answers
  • Where is the apical meristem found???​
    13·2 answers
  • How would an increase in nest sites affect a population of pigeons?
    15·1 answer
  • Who were carriers for of hemophilia in the royal family?
    12·1 answer
  • Which of the following is the model of DNA replication that best accounts for our current understanding of the genetic replicati
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!