Four students were given small pieces of materials P, Q, R and S respectively. They observed the reactions of these materials as follows :
According to them, materials P, Q, R and S respectively are
AFe, Cu, Na, P
BNa, Fe, P, Cu
CP, Fe, Na, Cu
DCu, P, Na, Fe
Refer to the given Venn diagram and select the correct option regarding it.
AX may have long and pointed beak whereas Y may have broad and short beak.
BY is a herbivorous bird whereas Z is an omnivorous bird.
CZ collects pebbles and stones to make a nest on the ground.
DY uses its beak like a needle to sew leaves together to build nest.
Which of the following statements is incorrect?
ASoil is made up of gravel, sand, humus, water and clay particles.
BTopsoil is rich in organic matter.
CRoots of big trees grow down into subsoil.
DBedrock contains lot of water and humus.
Priya is married to Vishal. Vishal is ____________ of Priya.
how ans is brother the ans. is husband
Tanya placed a potted plant near the window in a dark room as shown in Fig.1 and noted that the plant is growing in the direction c. After few days she rotated the pot in the position as shown in Fig. 2.
In which direction (p, q, r or s) will the plant grow after a few days?
Refer to the given diagram showing a natural cyclic process
Which of the following holds true regarding it?
ADeforestation will decelerate process V.
BProcess I occurs at a high rate in a rainforest and is absent in deserts whereas process III is involved in dew formation.
CThe physical state of water at X is liquid and that at Y is gaseous.
DBoth processes II and IV involve conversion of one physical state of water into another.