Tag: evs

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Questions Related to evs

Multiple choice evs nature of things properties of materials grouping and classification of objects sorting materials into groups

Opaque objects:

  1. does not transmit most of the light falling on them

  2. transmit most of the light falling on them

  3. absorb most of the light falling on them

  4. are strong and hard
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An opaque object is neither transparent (allowing all light to pass through) nor translucent (allowing some light to pass through). When light strikes an interface between two substances, in general, some may be reflected, some absorbed, some scattered, and the rest transmitted. 

Multiple choice evs nature of things properties of materials grouping and classification of objects sorting materials into groups

Transparent substances:

  1. absorb all the light incident on them.

  2. allow light to pass through them.

  3. do not allow light to pass through them.

  4. allow light to pass through them only partially.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Transparent substances allows the light to pass through them. Due to this it is possible to see through the transparent substances. 

Example: We are able to see through the some glasses because they are transparent.

Multiple choice evs on the move again various farming seasons and communities farming seasons and migration of communities seasons in india

Who are the people left behind in the village after families migrate for work?

  1. The old and the ill people

  2. Children

  3. Unemployed

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In many rural areas experiencing high migration for work, the demographic left behind typically includes the elderly, the ill, and children, as the working-age population moves to urban centers.

Multiple choice evs on the move again various farming seasons and communities farming seasons and migration of communities seasons in india

During what time of the year did Dhanus family get work in the village?

  1. Till Dussera

  2. During summer

  3. After winter season

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Till Dussera Dhanus family get work in the village. During summer and after winter season they do not work because there is no rain in rest of the month so n work in the field. With the help of new irrigation method like tube-well and canals they can work. 

Hence , option A is correct.

Multiple choice evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods other modes of vegetative propagation introduction to reproduction vegetative reproduction

This is an example of a very old viable seed excavated from Arctic Tundra. The seed germinated and flowered after an estimated record of $10,000$ years of dormancy. It is?

  1. Victoria

  2. Lupinus arcticus

  3. Phoenix dactylifera

  4. Strobilanthus kunthiana
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

There are several records of very old yet viable seeds. The oldest one is of a lupine(Lupnius arcticus) excavated from Arctic Tundra. Seeds of Lupinus arcticus, atleast $10,000$ years old were found in lemming burrows deeply buried in permanently frozen silt of Pleistocene age in ungladated central Yuzon. They readily germinated in the laboratory and have since grown into normal healthy plants.

Multiple choice evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods other modes of vegetative propagation introduction to reproduction vegetative reproduction

Parachute type of mechanism of seed dispersal is found in _____________.

  1. Pea/Leguminosae

  2. Mustard/Cruciferae

  3. Cotton/Malvaceae

  4. Taraxacum/Compositae
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Taraxacum (dandelion) seeds possess a pappus, which is a tuft of hairs that acts like a parachute to facilitate wind dispersal.

Multiple choice evs the journey of seeds vegetative propagation and seed dispersal seed dispersal seed dispersal and its methods other modes of vegetative propagation introduction to reproduction vegetative reproduction

Pappus occurs in compositae for

  1. Air pollination

  2. Air dispersal

  3. Insect pollination

  4. Animal dispersal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The pappus in Compositae is a modified calyx that forms a parachute-like structure, specifically designed to catch the wind and aid in the dispersal of seeds over distances.