Answer:
the remains of an animal or plant preserved within a layer of rock otherwise A.
A fossil is the remains of an animal or plant preserved within a layer of rock. The correct option is A.
What are fossils?Fossils are the preserved form of animals or plants that are preserved on rocks or deep in the earth's crust and did not get damaged. They are discovered in the digs that are done by paleontologists.
The bones and sometimes dry skins and hairs, and teeth are also found that are preserved. These fossils help in studying animals and plants that were present in former times.
They do not get destroyed because they are preserved in rocks and stones. We got to know about dinosaurs by their fossils. There are different types of fossils are found.
Thus, the correct option is A. The remains of an animal or plant are preserved within a layer of rock.
To learn more about fossils, refer to the link:
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plsss help ASAP!!!
BRAINLIEST
Answer:
-175.15
Explanation:
1.0 °C = 274.15 K
2.0 °C = 275.15 K
3.0 °C = 276.15 K
4.0 °C = 277.15 K
5.0 °C = 278.15 K
6.0 °C = 279.15 K
7.0 °C = 280.15 K
8.0 °C = 281.15 K
9.0 °C = 282.15 K
Can someone please help me quickly!!!
Answer:
Mercury
Explanation: Under standard conditions mercury is a shiny, heavy, silvery liquid. It is the only metal that is liquid at room temperature.
Answer:
Mercury, Venus, earth and mar, Jupiter, Saturn, urines, Neptune.
Explanation:
HELP! IM GIVING BRAINLIST.What is salinity?
Question 1 options:
The concentration of dissolved salt in a liquid
to become incorporated with a liquid in forming a solution
a liquid mixture in which the smaller component (solute) is distributed evenly through the major component (solvent)
Answer:eighter a b or c
nah i am playing it is a
Explanation:
Answer:
A is correct i took the quiz
Explanation:
Many earthquakes occur along the edges of continents that surround the Pacific Ocean. This area is called the Pacific Ring of Fire. Why does this region have so many earthquak
O A. The water in the Pacific Ocean is very heavy and pushes down on the Earth.
O B. Landslides are common along the steep Pacific Ocean coastlines.
O C. Plate boundaries occur along the edges of the Pacific Ocean.
OD. Strong typhoons are common in the Pacific Ocean.
Answer:
c
Explanation:
the plate tectonics collide there a lot
A chemical process used to produce ethanol as a fuel additive was expected to produce 5,000 kilograms of ethanol based on the amounts of starting materials used, but only 4,760 kilograms were produced. What was the percent yield for ethanol in this process?
A)1.09
B)4.80
C)95.2
D)105
Answer:
C)95.2
Explanation:
Given parameters:
Expected yield = 5000kg
Experimental yield = 4760kg
Unknown:
Percentage yield = ?
Solution:
The percentage yield of the substance is determined by find the ratio of the true experimental yield to the expect yield and multiply by 100;
Percentage yield = [tex]\frac{4760}{5000}[/tex] x 100 = 95.2%
8. Which type of bond results when one or more valence
electrons are transferred from one atom to another?
A) a hydrogen bond
B) an ionic bond
C) a nonpolar covalent bond
D) a polar covalent bond
Answer:
B
Explanation:
How many Joules of heat are required to melt 250 grams of ice at 0°C?
AHfus = 334 J/g
AHvap = 2258 J/g
Cp= 4.184 J/g C
Answer:
cp =4.184/c / j
Explanation:
ahvap=2258j/g
Heat required : Q = 83500 J = 83.5 kJ
Further explanationGiven
mass ice = 250 g at 0°C
Required
The heat required
Solution
The heat to change the phase can be formulated :
Q = m.Lf (melting/freezing)
Lf=latent heat of fusion
Input the value :
Q = 250 g x 334 J/g
Q = 83500 J
A by-product of photosynthesis that is not used by the plant, but rather released into the air, is ________________.
Answer: I think is carbon dioxide!!
Explanation: ( i havent learned about photosynthesis in a long time :) )
hope i helped!! also have a good day!
Select the set of coefficients that would balance the following equation:
S + HNO3 →
H2SO4 + NO2 + H2O
O 3, 2, 2, 3,1
O 6, 2, 2, 6, 2
O 1.6, 1, 2,6
O 1,6, 1, 6,2
What is the name of the element with the chemical symbol B?
Answer:
boron
Explanation:
cuz science.......
Give an example of elastic potential energy
Answer:
An archer's stretched bow.
Explanation:
Elastic potential energy is energy stored as a result of applying a force to deform an elastic object.
What animal did Darwin study in the Galapagos Islands?
1. Yellow fin tuna
2. Spiders
3. Hawks
4. Finches
Answer:
The answer is 4.
Explanation:
Finches.
Answer:
4. Finches
Darwin studied the forms of the beak, and found that they were different based on what they ate.
HELP ASAP DUE IN 5 MINUTES
the second one i think, hope this helps
Answer:
a
Explanation:
Calculate the molecular formula of a compound with the empirical formula CH O and a molar mass of 150 g/mol.
A) C2H4O2
B) C3H6O3
C) C4H8O4
D) C5H10O5
E) C6H12O6
The molecular formula : D) C₅H₁₀O₅
Further explanationGiven
The empirical formula CH₂O
The molar mass of 150 g/mol
Required
The molecular formula
Solution
The empirical formula is the smallest comparison of atoms of compound forming elements.
A molecular formula is a formula that shows the number of atomic elements that make up a compound.
(empirical formula) n = molecular formula
(CH₂O)n = 150 g/mol
(12+2.1+16)n = 150
(30)n = 150
n = 5
Which organelle of a prokaryotic cell contains genetic information?
cell membrane
ribosomes
nucleus
nucleoid
Answer:
The right option is the 4 one. nucleoid
Prokaryotic cells are simple cells that lack a definite nucleus and some membrane-bound organelles. Prokaryotic cells have a nucleoid region, which is an irregularly-shaped central region of the cell that contains the cell’s genetic information (DNA). Other organelles that can be found in prokaryotic cells include plasma membrane, cell wall, cytoplasm, and ribosomes.
Explanation:
Answer:
nucleoid
Explanation:
mole-mass problem:
Water decomposes to produce hydrogen gas and oxygen gas. How many moles of oxygen would be produced from 10.0 moles
water? 2 H2O → 2 H2 + O2
Answer:
5.00 mol O₂
Explanation:
2H₂O → 2H₂ + O₂In order to solve this problem we will need to convert moles of water to moles of oxygen. We will do that using the stoichiometric coefficients, as follows:
10.0 mol H₂O * [tex]\frac{1molO_2}{2molH_2O}[/tex] = 5.00 mol O₂Thus 5.00 moles of oxygen would be produced from 10.0 moles of water.
Classify the two balanced equations representing two chemical reactions
1 Cl2 + 2 NaBr + NaCl + 1 Br2 and 2 NaCl +2 Na + 1 Cl,
O Synthesis & Decomposition
O Synthesis & Double Replacement
O Single Replacement & Double Replacement
O Single Replacement & Decomposition
Single Replacement & Decomposition
Further explanationGiven
Two chemical reactions
1. Cl2 + 2NaBr ⇒2NaCl + Br2
2. 2NaCl ⇒2Na + Cl2
Required
Type of reaction
Solution
Equation 1 : A single replacement reaction is a chemical reaction in which one element replaces the other elements of a compound to produce new elements and compounds
General formula :
A + BC ⇒ AC + B
Equation 2 : the decomposition reaction of a compound into its constituent elements or compounds
General formula :
AB ⇒ A + B
Which would have the greatest evaporation: pure water or salt water?
Answer:
Pure Water.
Explanation:
Pure water evaporates faster than salt water.
How many orbitals are for p shapes
Answer:
3
Explanation:
From the table below we see that we can have three possible orbitals when l = 1. These are designated as p orbitals and have a sort of 8 shapes. Each of the p orbitals has a different orientation in three-dimensional space.
In which of these do you need to know the direction in which the object is moving?
velocity
instantaneous speed
average speed
mass
Answer:
velocity
Explanation:
Help Me ASAP! Looking at the picture above which images would be best classified as molecules?
Answer:
B
Explanation:
Answer:
C) B AND C
Explanation:
points
Which layer of the atmosphere is directly above the troposphere?
exosphere
stratosphere
troposphere
mesosphere
Answer:
stratosphere is directly above troposphere I think
what is the name for a change in the environment that causes an organism to change it's activity
Answer:
the answer is stimilus!
Explanation:
Can a hype Glow in the dark ?
According to the kinetic molecular theory, which statement describes the particles in a sample of an ideal gas
Explanation:
an ideal gas moves in constant, rapid motion
A fixed mass of oxygen gas occupies 300cm cube at 0 degree centigrade. what volume would the gas occupy at 15 degree centigrade
Answer:
hey
Explanation:
The air we breathe contains different individual gases (mostly nitrogen and oxygen). Which of the following correctly describes the air we breathe?
a
element
b
compound
c
mixture
d
none of these
How many grams are there in 2.75E23 molecules of C2H6 (MM = 30 grams)?
Answer:13.70 i think
Explanation:
A boy sets up a picnic on the beach next to a sand dune. how are sand dunes formed?
Answer:
Sand dunes are created when wind deposits sand on top of each other until a small mound starts to form. Once that first mound forms, sand piles up on the windward side more and more until the edge of the dune collapses under its own weight.
Balance the equation
AgBr +
GaPO4 →
Ag3PO4 +
GaBi3
Answer:
3AgBr + GaPO4 ----> Ag3PO4 + GaBr3Explanation:
