All questions of Preposition for Class 9 Exam

Understanding the Correct Answer: Option B - "Within"
When discussing the phrase "I'll be ready to leave _____ ten minutes," it's essential to understand the nuances of the prepositions presented.
Meaning of "Within"
- The word "within" indicates a time frame or a limit within which something will occur.
- For example, "within ten minutes" suggests that the action will be completed at any time before the ten-minute mark is reached.
Comparing Other Options
- Option A: "On"
- This would imply a specific moment in time, which is not suitable for the context of preparing to leave.
- It suggests an exact time (e.g., "on 3 PM"), not a duration.
- Option C: "By"
- While "by ten minutes" might seem appropriate, it typically indicates a deadline rather than a timeframe.
- It implies that the action could happen anytime up to ten minutes but doesn't emphasize the ongoing process of getting ready.
- Option D: "None of these"
- This option is incorrect because "within" accurately fits the context.
Conclusion
In summary, using "within" effectively communicates that the readiness to leave will happen anytime up to the ten-minute mark, making it the most appropriate choice in this context. Understanding the subtle differences between these prepositions can enhance clarity in communication.

The correct answer is B:.
Here is a detailed explanation:
- The sentence states that "He spent the entire afternoon _______ the laptop."
- The word "laptop" suggests that the person was using the laptop for a certain activity.
- To fill in the blank, we need to choose a preposition that indicates the person's interaction with the laptop.
- Let's analyze the options:
A:
- The preposition "at" is generally used to indicate a location or position.
- It doesn't convey the idea of using or interacting with the laptop.
B:
- The preposition "on" is commonly used to indicate using or interacting with electronic devices such as laptops, computers, tablets, etc.
- This option fits the context of the sentence as the person is likely using the laptop for a certain activity.
C:
- The preposition "beside" is used to indicate a position next to something or someone.
- It doesn't convey the idea of using or interacting with the laptop.
D:
- This option can be eliminated as there is a suitable preposition among the given choices.
- Therefore, the correct answer is B:, as it indicates that the person spent the entire afternoon using or interacting with the laptop.

Explanation:

The correct answer is option 'B' - "at".

When we talk about someone's residential address, we use the preposition "at". The preposition "at" is used to indicate a specific location or position, and it is commonly used to refer to someone's home address.

In the given sentence, the phrase "lives at M.G. Road" indicates that the person's best friend resides or stays at M.G. Road. This means that M.G. Road is the specific location where the best friend's home is located.

Using the preposition "in" would not be appropriate in this context because "in" is used to refer to a larger area or a general location. It is commonly used to indicate being inside or within a larger region.

The preposition "on" is also incorrect in this context because it is used to indicate being physically on top of something or to refer to a specific surface. It is not appropriate to use "on" when referring to someone's residential address.

Summary:

To correctly indicate someone's residential address, we use the preposition "at". Therefore, the correct answer is option 'B' - "at".

To solve this question, we need to identify the correct word to complete the sentence based on the context given. Let's analyze the options:
A:
B:
C:
D:
The sentence states that Rima is not interested in sports, and the word that fills the blank should indicate the reason for her disinterest. The correct word to use in this context is "since." Here's the breakdown:
- The sentence structure suggests that Rima's lack of interest in sports is due to her preference for science.
- The word "against" does not fit because it implies opposition or conflict, which is not mentioned in the sentence.
- The word "for" does not fit because it suggests a reason to support or favor sports, which contradicts the sentence.
- The correct word "since" indicates a causal relationship, explaining that Rima's interest in science leads to her disinterest in sports.
Therefore, the correct answer is B: since.

Liquid hydrogen is the fuel used in rockets and various spaceships. It is light and extremely powerful rocket propellant, has lowest molecular weight and burns with extreme intensity. In combination with an oxidizer such as liquid oxygen, liquid hydrogen yields the highest specific impulse.

Preposition of Movement

The correct answer is option 'A', across.

Explanation:

Preposition of movement indicates how something moves from one place to another. The preposition across is used to indicate movement from one side to another side of something. Therefore, to reach the destination, one has to move across the field.

Other examples of preposition of movement are:

- To indicate movement from one place to another, we use prepositions like to, towards, and into.
Example: She walked towards the park.
- To indicate movement away from a place, we use prepositions like from, out of, and away from.
Example: He ran away from the building.
- To indicate movement along a path, we use prepositions like along, down, and up.
Example: The river flows down the valley.

Explanation:
The correct answer is B: under.
Here's a detailed explanation:
- The phrase "hiding under the bridge" indicates that the thief is concealed beneath the bridge structure.
- The word "under" in this context means beneath or below.
- The word "at" does not accurately describe the thief's location because it does not convey the idea of being concealed.
- The word "in" suggests that the thief is inside the bridge, which is not possible in this scenario.
- The correct preposition to describe the thief's location is "under" because it implies that the thief is hidden beneath the bridge structure.
- Therefore, the police caught the thief hiding under the bridge.
In summary, the correct preposition to complete the sentence is "under" because it accurately describes the thief's location.

The correct answer to the question is option C: "by".
Here's a detailed explanation:
1. The sentence states that Seema's children responded to her parenting.
2. The phrase "throwing a tantrum" indicates a negative or challenging behavior on the part of the children.
3. To determine how the children responded, we need to consider the appropriate preposition to complete the sentence.
4. Let's analyze each option:
- Option A: "with" - This preposition is commonly used to show the manner or means by which someone does something. However, it does not fit well in this context, as it does not convey a response to the parenting.
- Option B: "from" - This preposition is typically used to indicate the source or origin of something. It does not accurately represent the children's response to Seema's parenting.
- Option C: "by" - This preposition is often used to show the agent or means through which an action occurs. In this case, it correctly suggests that the children responded to Seema's parenting through throwing a tantrum.
- Option D: "none of these" - This cannot be the correct answer since option C, "by," accurately represents the intended meaning of the sentence.
In conclusion, the correct answer is option C: "by," as it appropriately conveys that Seema's children responded to her parenting by throwing a tantrum.