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  1. Asked: June 27, 2024In:

    Explain the importance of fossils in deciding evolutionary relationships.

    Karthika
    Karthika Beginner

    fossils are an important source of evidence for evolution. They help us study ancient organisms, identify extinct and transitional forms, observe gradual changes, and determine evolutionary relationships between different groups. Therefore, the study of fossils helps scientists understand how presenRead more

    fossils are an important source of evidence for evolution. They help us study ancient organisms, identify extinct and transitional forms, observe gradual changes, and determine evolutionary relationships between different groups. Therefore, the study of fossils helps scientists understand how present-day organisms evolved from their ancestors over millions of years.

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  2. Asked: June 30, 2024In:

    Why does the rainfall decrease from the east to the west in Northern India?

    Karthika
    Karthika Beginner

    Rainfall decreases from east to west in Northern India because the Bay of Bengal branch of the Southwest Monsoon winds moves from east to west across the Northern Plains. As these moisture-laden winds travel westward, they gradually lose their moisture through rainfall. Therefore, the amount of moisRead more

    Rainfall decreases from east to west in Northern India because the Bay of Bengal branch of the Southwest Monsoon winds moves from east to west across the Northern Plains. As these moisture-laden winds travel westward, they gradually lose their moisture through rainfall. Therefore, the amount of moisture in the winds decreases as they move farther west. Hence, eastern parts of Northern India receive more rainfall, while western parts receive less rainfall. Rainfall decreases from east to west because the monsoon winds lose moisture as they travel westward across Northern India.

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  3. Asked: July 2, 2024In:

    Ammonia is found in many household products, such as window cleaners. It turns red litmus blue. What is its nature?

    Karthika
    Karthika Beginner

    Ammonia is basic (alkaline) in nature. It is commonly found in household products such as window and glass cleaners. When ammonia dissolves in water, it produces hydroxide ions (OH⁻), which give it its basic properties. A base changes the color of red litmus paper to blue. Since ammonia turns red liRead more

    Ammonia is basic (alkaline) in nature. It is commonly found in household products such as window and glass cleaners. When ammonia dissolves in water, it produces hydroxide ions (OH⁻), which give it its basic properties. A base changes the color of red litmus paper to blue. Since ammonia turns red litmus blue, this confirms that ammonia is a base.

    Therefore, the nature of ammonia is basic (alkaline).

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  4. Asked: February 12, 2026In:

    How can I apply for TNPSC Group 1, 2, and 4 exams in Tamil Nadu?

    Karthika
    Karthika Beginner

    All TNPSC exams are applied for online through the official TNPSC website. You must first create a One Time Registration (OTR), which stays valid for five years. After that, you can start applying separately for Group 1, Group 2, or Group 4 whenever the notifications are released. Each group has difRead more

    All TNPSC exams are applied for online through the official TNPSC website. You must first create a One Time Registration (OTR), which stays valid for five years. After that, you can start applying separately for Group 1, Group 2, or Group 4 whenever the notifications are released. Each group has different eligibility and exam patterns, so check them before you apply. Also, try no to miss the deadlines. All the best!

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