1. [B] Nephron Nephron is the structural and functional unit of excretory system.

    [B] Nephron
    Nephron is the structural and functional unit of excretory system.

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  2. [C] absorb moisture from the gas Remember, calcium chloride is used as a drying agent which absorbs moisture from the hydrogen chloride (HCI) gas.

    [C] absorb moisture from the gas
    Remember, calcium chloride is used as a drying agent which absorbs moisture from the hydrogen chloride (HCI) gas.

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  3. Clayey soil contains many minerals. It can hold large quantity of water. It however cannot trap air. Therefore, clayey soil is suitable for the plants which require standing water, such as paddy.

    Clayey soil contains many minerals. It can hold large quantity of water. It however cannot trap air. Therefore, clayey soil is suitable for the plants which require standing water, such as paddy.

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