Answer : Option CExplaination / Solution:
A psammosere is a seral community, an ecological succession that began life on newly exposed coastal sand. Most common psammoseres are sand dune systems.
Q3.The median of an ordered set of data is the value that represents
Answer : Option DExplaination / Solution:
The median can be easily computed by sorting the data from smallest to largest and counting the middle value.
Q5.The driver of a three-wheeler moving with a speed of 36 km/h sees a child standing in the middle of the road and brings his vehicle to rest in 4.0 s just in time to save the child. The mass of the three-wheeler is 400 kg and the mass of the driver is 65 kg.Find out the deceleration produced and the retarding force on a vehicle.
Answer : Option BExplaination / Solution:
V= final velocity = 0
V0 = initial velocity = 36 km/h = 10 m/s
a=v−v0t=0−104=−2.5ms2
F= ma = -465 x 2.5 = -1162.5N (negative sign indicates the retarding force)
i. cartilaginous joint is often called symphysis and eg. joints between adjacent vertebrae. ii. The joint between atlas and axis vertebrae in man is a cartilaginous joint.
Answer : Option BExplaination / Solution:
The joint between the adjacent vertebrae in the vertebral column is caritilaginous joint.
Q8.In 1997, an American company got patent rights on
Answer : Option BExplaination / Solution:
In September 1997 Texas, USA company RiceTec was granted U.S. Patent No. 5,663,484 on "basmati rice lines and grains." The patent secures lines of basmati and basmati-like rice and ways of analyzing that rice. RiceTec, owned by Prince Hans-Adam of Liechtenstein, faced international outrage over allegations of biopiracy.
Q10.Contraceptive oral pills help in birth control by
Answer : Option CExplaination / Solution:
Contraceptive pills contain hormone progestogens or estrogen or combination of both. These hormones prevent the ovulation and prevent the pregnancy.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0