All categories

1 year ago

B) Explain if the fossil evidence supports the idea that each cycle takes a long period of time.

1 answer:

3 0

Fossils are great for providing evidence for an evolutionary change! Scientists can see how long life has existed on Earth by studying fossil records. Any living organism that is preserved, is considered a fossil, including plants! Fossils take 10,000 years to be formed, showing that, yes, fossil evidence supports that these cycles of evolution take quite a long time.

Hope this helps!

-Moiselle

You might be interested in

What will determine the number of moles in a sample

julsineya [31]

Answer:

weigh it and divide the weight by the molecular weight. :) good luck!!

Explanation:

3 0

3 years ago

Read 2 more answers

Which of the following are quantized? A) canned soup from the grocery store b) the weight of jelly beans c) elevation of a perso

alisha [4.7K]

Both <span>b) the weight of jelly beans and c) elevation of a person on a ramp</span>

6 0

3 years ago

d) A short ton of coal holds about 2.24 x 107 J of energy and costs about $56.45 per short ton. How many Joules of energy in the

Feliz [49]

Answer:

396811.337 J

Explanation:

The cost of one short ton of coal = $56.45

The energy related to the short ton of coal = $2.24\times 10^{7}\ J$

Thus, As according to the question,

$56.45 of coal have $2.24\times 10^{7}\ J$ of energy.

$1 of coal have $\frac{2.24\times 10^{7}}{56.45}\ J$ of energy.

<u>The amount of energy = 396811.337 J</u>

4 0

3 years ago

Why do electrons transition between energy levels within the atom, and how do we detect these transitions?

Sedaia [141]

Answer:

See explanation

Explanation:

Electrons transition between energy levels in an atom due to gain or loss of energy. An electron may gain energy and move from its ground state to one of the accessible excited states. The electron quickly returns to ground state, emitting the energy previously absorbed as a photon of light. The wavelength of light emitted is measured using powerful spectrometers.

Atoms can be excited thermally or by irradiation with light of appropriate frequency.

7 0

3 years ago

Cobalt-60 is produced by neutron activation. in this process, one neutron is absorbed by the nucleus of the parent isotope. what

kkurt [141]

The parent isotope is cobalt-59 (see the picture below).

The mass number is 59 and atomic number is 27 of the parent isotope.

Neutron activation is the process in which atomic nucleus capture free neutron or neutrons.

Cobalt-60 is produced in nuclear reactors in process of neutron activation from parent isotope cobalt-59 (see the picture below).

Atomic number (Z) is total number of protons and mass number (A) is total number of protons and neutrons in a nucleus.

Cobalt-59 and cobalt-60 are the isotopes of chemical element cobalt.

Isotopes are chemical elements with same atomic number (Z), but different mass number (different number of neutrons).

More about isotopes: brainly.com/question/364529

#SPJ4

6 0

1 year ago