In a grassland ecosystem, if the pollution of eagles suddenly decreased, what will most likely be the effect on the rest of the ecosystem.A. The ecosystem will become overpopulated with snakes.
B. There will be a decrease in the population of snakes in the ecosystem.
C. The nutrition of the soil in the ecosystem will decrease.
D. More type of plants will begin growing in the ecosystem.
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Where is the input forcein the use of this simplemachine?A. The feet planted in the snowB.The shovel liftedC. The gravity pushing down onthe snowD. The hands on the shovel
What does the star release, and in what form do we see it ?
O 0.5
30
60
120
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Answer:
the answer of the problem is going to be 120 but I'm not positive
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Answer:
chemical change through chemical process .
physical change means change in dimension.
Final answer:
A chemical change involves a change in the substance's composition, creating new substances with different properties, typically through reactions such as rusting or combustion. In contrast, a physical change alters a substance's form without affecting its composition, as in melting or condensation processes. The processes can also be classified as exothermic (releasing heat) or endothermic (absorbing heat).
Explanation:
The difference between a chemical change and a physical change pertains to the composition of the substance in question. A chemical change always results in the production of a new substance with different properties from the original matter. For example, the formation of rust from iron, or the combustion process in burning, are chemical changes. These result in the creation of substances distinct from the original matter.
On the other hand, physical changes do not affect the composition of the substance, but alter its state or form, such as the melting of ice into water or the condensation of steam into liquid water. These changes, while observable, do not produce new substances, hence maintaining the original properties of the matter.
Physical and chemical changes can also be differentiated based on whether they release or absorb heat, with exothermic processes releasing heat and endothermic processes absorbing heat. For example, the burning of a fuel is an exothermic process, while the operation of a cold pack is an endothermic process.
Learn more about Chemical vs Physical Change here:
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I hope I helped :D
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-- Pick up a book from off the table.
-- Push a crate along the floor.
-- Roll a ball up a ramp.
-- Drop a rock off a cliff into the water.
(Gravity does the work in this one.)
2. Try to solve the answer
3. Then write the answer down
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TheGrand Canyon is made up of sedimentary rock; over time, sediments formed intolayers. The layers on the bottom are the oldest, and the layers on the top arethe youngest and newest.
Try and paraphrase though
Answer: C
Scientists observe the layers for evidence of similar rock types and fossil formations to determine the age of landforms. If they find the same fossil in two different locations, scientists may conclude that those fossils are most likely from the same time period. The same is true for landforms made of certain types of rock. When scientists see layers of similar rock sediments, they use that as evidence to support that are from a similar time period. By analyzing the rock layers, scientists estimate that Earth is 4.6 billion years old.
Explanation:
A. charge B. resistance C. Voltage
must be
A. Negative
B. Zero
C. Positive
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If an electric circuit has zero Ampere (0A) of current running through it, then the voltage must be zero.
Ohm's law states that the current flowing through an electric circuit is directly proportional to the voltage (potential difference) applied across the two terminals of an electric circuit and inversely proportional to the resistance in the electric circuit, at a constant temperature.
This ultimately implies that, the value of voltage (potential difference) is highly dependent on the value of the current running through an electric circuit.
Mathematically, Ohm's law is given by this formula;
Where:
- V is the voltage measured in Volts.
- I is the current measured in Amperes.
- R is the resistance measured in Ohms.
In conclusion, if an electric circuit has zero Ampere (0A) of current running through it, then the voltage must be zero.
Read more on Ohm's law here: brainly.com/question/796939
Answer:
1. Option C: Voltage
2. Option B: Zero
Explanation:
According to Ohm's law, the current in a circuit is directly proportional to the voltage. This means, when there is potential difference across the two ends of a circuit, then only current flows.
I ∝ V
If the given circuit has 0 A current, it means that either potential is zero or resistance is infinite. Practically, we cannot have infinite resistance. This means that the voltage must be zero.