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
NeTakaya
3 years ago
7

Ancient astronomers thought that Earth was flat. Which observation eventually proved that this is wrong? A) Earth is at the cent

er of the solar system. B) The moon and the sun are spherical in shape. C) There are days and nights and seasons on Earth. D) Earth’s shadow on the moon shows it is spherical.
Biology
2 answers:
jonny [76]3 years ago
7 0

Answer:

D) Earth's shadow on the moon shows it is spherical.

Explanation:

According to ancient astronomers, Earth was flat. But it was eventually proved wrong.

1. Had Earth been flat, ship in the sea could be seen for a far distance but it is not so.

2. During the lunar eclipse, the shadow of the Earth falling on moon would have been flat or would have sharp edges. But, the shadow was found to be round in shape. A spherical object casts a round shadow.

Thus, option D is correct.

ivanzaharov [21]3 years ago
3 0
The answer is most likely D. At least I think it is
You might be interested in
You introduce cyanide to an actively respiring mitochondrion. Cyanide blocks the transfer of electrons from the last cytochrome
enot [183]

Answer:

The answer is true, the pumping of hydrogen ions decreases and finally stopps.

Explanation:

As the cyanide blocks the bindinge site for oxygen, which is normally reduced to water, the pumping of hydrogen from the matrix into the space between the mitochondrial membrane decreases and finally stopps. There is an accumulation of electrons and the components of the respiratory chain are completely reduced, therefore the respiratory chain stopps working.

5 0
3 years ago
Construction of phylogenetic trees (cladograms) is based on the assumption that __________.
Vlada [557]
I believe it’s the first option
4 0
4 years ago
Pls help meh...
IRISSAK [1]

Answer:

Genes go brrrrrrrr

Explanation:

The answer is C because gene therapy is used to knock out, replace, or remove the mutated genes.

6 0
3 years ago
Read 2 more answers
5.Each chemical element is made up of only one kind of *
krek1111 [17]
Each element is made of only one kind of atom
5 0
3 years ago
Diamonds are extremely————and graphite(pencil lead) is ————.
Alinara [238K]

Answer:

Diamonds are extremely durable and graphite (pencil lead) is very fragile.

Explanation:

5 0
3 years ago
Other questions:
  • In an open circulatory system, blood is ________. not always confined to blood vessels and is under higher pressure than in clos
    11·1 answer
  • There are many developmental stages that a human undergoes between fertilization and birth. Immediately following which stage do
    14·2 answers
  • During light reactions, ATP is produced when hydrogen ions move:
    7·1 answer
  • Which of the following molecules is most abundant in the cells of the human body?
    6·2 answers
  • State one advantage of the fish larvae moving by ocean currents into a<br>damaged reef ecosystem.​
    14·1 answer
  • Help please I’m gonna cry
    7·2 answers
  • Translate the following AUG CCC AUU AUC CGG
    15·2 answers
  • How did you form sediment? Where on the landscape did the sediment form?​
    11·1 answer
  • When-inserting-a-new gene into an organism, the gene could come from the same species or it could come from a different species.
    8·1 answer
  • Define nucleic acid but it has to be five words
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!