Butter paper and oiled paper are two examples of translucent objects

No, it is not a herb because sapling is a stage in the growth of the plant. A mango sapling would grow into a tree.

Adaptation does not take place in a short time. The abiotic factors of a region change over thousands of years. The animals and plants which cannot change themselves and do not adapt to these changes die out and those who adapt are able to survive.

Water from the oceans and surface of the earth goes into air as vapours and returns as rain, hail or snow and finally goes back to the oceans. The circulation of water in this manner is known as water cycle. The circulation of water between ocean and land is a continuous process. It maintains the supply of water on land.

We generally eat fruit of many plants.

(a) Compost is a substance converted into manure for use in agricultural fields.
(b) Landfill is the place where garbage is buried under soil in an area.
(c) Recycling is a process of using used material in the same or another form.

The possible reasons so that the even at switch ON position bulb is not glowing are
(i) The cell may be discharged.
(ii) The bulb may be fused.
(iii) The wire may be broken from inside.

Cloud is an example of non-living thing which shows following two characteristics of living things:
(i) It increases or decreases in size
(ii) It shows movements.
(Another example can be a car move from one place to another and also requires energy, i.e. petrol).

The three common characteristics of materials are.
(i) All materials occupy space.
(ii) All materials possess mass.
(iii) All materials can be felt by one or more of our sense organs.

If a plant has fibrous root, its leaves have parallel venation.

On a sunny day, go to a room which is a little bit dark. In this room, choose a thin opening through which light can enter the room. If, there is no opening in the room, then make one. From this opening we will see that a sharp beam of sunlight enters the room. In this beam, we will observe that there are some tiny solid-like particles moving freely. These particles are the dust particles, and this shows the presence of dust particles in air.

Steps involved in the magnetising of an iron strip are
(i) Take an iron strip which is to be magnetised.
(ii) Keep it in a wooden table.
(iii) Hold one end of bar magnet in your hand and keep the other end of bar magnet at one end of iron bar.
(iv) Without lifting, move the lower end of bar magnet to the end of iron bar.
(v) After reaching end of iron bar, lift the bar magnet and bring it to the same position and repeat the process again and again.

Sometimes, the shadow of the object (ball) may not be formed because of improper arrangement. It may be that the direction of the torchlight is not towards the screen. The shadow will be formed only if screen, torch and ball are in the same straight line (as shown in figure).

Substances soluble in water are sugar, salt, honey, copper sulphate crystals, glucose. Substances insoluble in water are mustard oil, sand, sawdust, chalk powder, petals of flower, soil, wheat flour.

(a) The leaves with reticulate venation have tap roots. Whereas leaves with parallel venation have fibrous roots. We can identify the roots by keeping these points in mind.
(b) There are two types of venations seen in different plants.
(i) Reticulate venation In such type, the veins make a network of veins around the main midrib, e.g.sunflower, mustard, etc.
(ii) Parallel venation In such type, the veins run parallel along the main midrib, e.g. maize, wheat, etc.
(c) Archana is a responsible, student. She is attentive towards her studies and has scientific attitude.