The process by which energy is generated in the Sun is :

• Nuclear fusion
• Nuclear fission
• Both nuclear fusion and nuclear fission
• The burning of gases
Correct Option: A  [ Nuclear fusion ]

Remark:

Which of the following is not correct ?
(a) Exercise does not help in managing psychological discomfort.
(b) Exercise increases cardio-respiratory fitness.
(c) Exercise reduces risk of diabetes.
(d) Exercise helps in managing bone health.

• Exercise does not help in managing psychological discomfort.
• Exercise increases cardio-respiratory fitness.
• Exercise reduces risk of diabetes.
• Exercise helps in managing bone health.
Correct Option: A  [ Exercise does not help in managing psychological discomfort. ]

Remark:

Cuscuta is a :

• Parasite
• Saprophyte
• Epiphyte
• Xerophyte
Correct Option: A  [ Parasite ]

Remark:

What is the name of first Indian Artificial satellite?

• Apollo
• Rohini
• Bhaskara
• Aryabhatta
Correct Option: D  [ Aryabhatta ]

Remark: launched by the Soviet Union on 19 April 1975 and built by the Indian Space Research Organisation (ISRO)

'Mirage' is an example of:

• refraction of light only
• total internal reflection of light only
• refraction and total internal reflection of light
• dispersion of light only
Correct Option: C  [ refraction and total internal reflection of light ]

Remark:

Green leafy vegetable are rich source of :

• Citric acid
• Malic acid
• Folic acid
• none of these
Correct Option: C  [ Folic acid ]

Remark:

Sugarcane is a type of

• creeper
• shrub
• grass
• tree
Correct Option: C  [ grass ]

Remark:

The rusting of the iron is the example of:

• Oxidation
• Reduction
• Polymerisation
• Galvanization
Correct Option: A  [ Oxidation ]

Remark:

Most plants absorb nitrogen in the form of:

• proteins
• nitrates and nitrites
• urea
• nitrates, nitrites and urea
Correct Option: D  [ nitrates, nitrites and urea ]

Remark:

The gas which destroys ozone layer is:

• Oxygen
• Argon
• Chloroflurocarbon
• Hydrogen
Correct Option: C  [ Chloroflurocarbon ]

Remark: