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
denis-greek [22]
2 years ago
13

The fossil pictured above came from the St. Clair Site in Pennsylvania. The fossils are formed in black slate of the Pennsylvani

an Period, 300 million years ago. The fossils found at this site are comprised of ferns and trees. This fossil record for this time period in Pennsylvania indicates that the environment was a __________.
A) desert
B) deep ocean
C) shallow sea
D) thriving forest
Chemistry
2 answers:
netineya [11]2 years ago
6 0

Answer:

D) thriving forest

Explanation:

-A desert is a big area with sand that has no vegetation.

-An ocean is a large body of water.

-A shallow sea is a body of salt water that has little depth.

-A forest is an ecosystem that has a lot of vegetation.

According to the definitions and considering that the fossils found are comprised of ferns and trees, the answer is that the environment was a thriving forest.

Andre45 [30]2 years ago
5 0

Answer:

The answer is D)

Explanation:

Clue Words: Ferns and trees.

You might be interested in
Did Adam Jackson win by
devlian [24]

Answer:

by a number

Explanation:

4 0
3 years ago
Read 2 more answers
Where do you write salt and suger why​
Rashid [163]

Answer:

here: "salt and sugar"

Explanation:

I dunno, looks pretty, gives 5 points. even tough any context is missing

but seriously:

salt and sugar look the same. just someone with a split personality

7 0
3 years ago
How are exothermic and endothermic reactions linked in the process of refining metal ore?
Alex777 [14]
The intended sense is that of a reaction that depends on absorbing heat if it is to proceed. The opposite of an endothermic process is an exothermic process, one that releases "gives out" energy in the form of heat
6 0
3 years ago
The change in internal energy for the combustion of 1.0 mol of octane at a pressure of 1.0 atm is -5084.1 kj . f the change in e
TEA [102]

<u>Given:</u>

Change in internal energy = ΔU = -5084.1 kJ

Change in enthalpy = ΔH = -5074.3 kJ

<u>To determine:</u>

The work done, W

<u>Explanation:</u>

Based on the first law of thermodynamics,

ΔH = ΔU + PΔV

the work done by a gas is given as:

W = -PΔV

Therefore:

ΔH = ΔU - W

W = ΔU-ΔH = -5084.1 -(-5074.3) = -9.8 kJ

Ans: Work done is -9.8 kJ


6 0
3 years ago
How do the cells in your body get energy?
Anastasy [175]
The cells get into your body by the lungs this answer is correct cause i had the same question and my teacher mark it correct
4 0
3 years ago
Other questions:
  • Write the formal charge for C,H and O in CH3COOH
    15·2 answers
  • A 3.96x10^-24 M solution of compound A exhibited an absorbance of 0.624 at 238 nm in a 1.000-cm cuvet; a blank solution containi
    15·1 answer
  • The gas molecules that make up air are in two rooms. The gas molecules in the kitchen are moving faster than the gas molecules i
    15·1 answer
  • A 0.652-g sample of a pure strontium halide reacts with excess sulfuric acid. the solid strontium sulfate formed is separated, d
    6·1 answer
  • Question 8
    14·1 answer
  • Explain the difference, with sketches, between the titration curves of monoprotic acid and a triprotic acid.
    9·1 answer
  • I need help finding the formulas of these ionic compounds
    12·1 answer
  • 21)
    14·1 answer
  • If there are 94 different kinds of naturally occurring atoms how many different naturally occurring elements are there?
    14·1 answer
  • What kind of water is found in littoral zone of a lake?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!