Renu wanted to test the quality of a fabric. She pulled a small strand of yarn from the fabric and burned it. It smelled like a burning hair. She inferred that the fabric is made of pure _________.
DNone of these.
silk smells like charred meat...wool only will smell like burnt hair
Study the given food web and select the correct option for the following questions.
How many food chains are there in the food web?
Which of the following statements is incorrect about the asteroids?
AThey are planet like objects, but smaller and often irregularly shaped.
BMajority of asteroids orbit in the asteroid belt between the orbits of Mars and Jupiter.
CAsteroids mainly composed of mineral and rock.
DVesta is the largest and most massive asteroid discovered.
from https://en.wikipedia.org/wiki/4_Vesta: Vesta (minor-planet designation: 4 Vesta) is one of the largest objects in the asteroid belt, with a mean diameter of 525 kilometres (326 mi).I think some error with question
The given figure shows a plant with some of its parts labelled as a, b and c. Select the correct option regarding it.
A In absence of 'a' plant will die due to lack of food as it will not be formed.
B In absence of 'b' plant will die due to lack of water as it will not be absorbed.
C In absence of 'c', plant will die due to unavailability of air as it cannot enter the plant.
D Both (A) and (B)
Three metals P, Q and R show different expansion properties when heated. The metal P expands less than Q and metal Q expands less than R.
Aditi has made a circuit for a fire alarm in which she wants to use a bimetallic strip to cause completion of the circuit (shown in figure) so that the alarm bell
Which of the following bimetallic strips should she use at place X?
Read the following passage carefully.
P is found abundantly in cod liver oil and is important for visual efficiency.
Q is sourced from amla, tomato and citrus fruits and its deficiency may cause wounds to take longer time for healing.
R is formed in our body in presence of sunlight and its deficiency in toddlers may cause deformity of legs.Now select the incorrect option regarding this.
AP can be found in spinach but not R.
BIn absence of R our body will show calcium deficiency even if it is abundant in our food.
CQ is also called B-complex as many of its varieties are available.
D P cannot be dissolved in water.
Three different species of plants were selected by scientists who wanted to document their methods of seed dispersal. The graphs below show the approximate number of seedlings found at various radii around the parent plant.
What are the correct methods of seed dispersal of each plant?
|Species 1||Species 2||Species 3|
A very tough question