7th Standard English Medium Science Subject Book Back 1 Mark Questions with Solution Part - II

7th Standard

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Science

Time : 00:30:00 Hrs
Total Marks : 15
    15 x 1 = 15
  1. Pollinators are _________.

    (a)

    Wind

    (b)

    Water

    (c)

    Insect

    (d)

    All the above

  2. Tobacco chewing causes ________ .

    (a)

    Anamia

    (b)

    Periodontitis

    (c)

    Tuberculosis

    (d)

    Pneumonia

  3. Which software is used to create symbols?

    (a)

    Photoshop

    (b)

    Illustrator

    (c)

    Vector Graphics

    (d)

    Photostory

  4. Mercury is often used in laboratory thermometers because it _______.

    (a)

    is a harmless liquid

    (b)

    is silvery in colour and is attractive in appearance

    (c)

    Expands uniformly

    (d)

    is a low cost liquid

  5. Small amounts of electrical current are measured in milliampere (mA). How many milliampere are there in 0.25 A ?

    (a)

    2.5 mA

    (b)

    25 mA

    (c)

    250 mA

    (d)

    2500 mA

  6. _________ is not a chemical change.

    (a)

    Dissolution of ammonia in water

    (b)

    Dissolution of carbon-di-oxide in water

    (c)

    Dissolution of oxygen in water

    (d)

    Melting of polar ice caps

  7. Suitable term for the various components of cell is_____.

    (a)

    Tissue

    (b)

    Nucleus

    (c)

    Cell

    (d)

    Cell organelle

  8. The binomial name of pigeon is _______

    (a)

    Homo sapiens

    (b)

    Rattus rattus

    (c)

    Mangifera indica

    (d)

    Columbo livia

  9. In Tux Math, Space cadet option is used for ……

    (a)

    Simple addition

    (b)

    Division

    (c)

    Drawing

    (d)

    Multiplication

  10. The image formed by a pinhole camera is inverted because, ______.

    (a)

    light travels in straight lines

    (b)

    light rays become laterally inverted as they pass through a pinhole camera

    (c)

    light rays pass through the pinhole

    (d)

    light rays get reflected

  11. The galaxy containing young and hot stars is _______.

    (a)

    elliptical galaxy

    (b)

    irregular galaxy

    (c)

    cluster

    (d)

    spiral galaxy

  12. A good application of plastic is the use of ________

    (a)

    Blood bags

    (b)

    Plastic cutlery

    (c)

    Plastic straws

    (d)

    Plastic carry bag

  13. Which is the hottest part in the flame of candle_______.

    (a)

    Blue

    (b)

    Yellow

    (c)

    Black

    (d)

    Way part

  14. The cultivation and production of silk is known as______.

    (a)

    Horticulture

    (b)

    Floriculture

    (c)

    Agriculture

    (d)

    Sericulture

  15. If the ruler is not displayed in the screen, _______ option is clicked.

    (a)

    View-> ruler

    (b)

    view-> task

    (c)

    file-> save

    (d)

    edit->paste

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