Source of Energy
1. Which of the following produces energy because of temperature difference at various levels in ocean.

A. Tidal energy B. Wave energy C. Solar energy D. Ocean thermal energy

Answer: Option (D)
2. Which energy source is the largest source used in India?

A. CNG B. LPG C. Coal D. Bio Gas

Answer: Option (B)
3. Which of the following is normally used in solar cookers for trapping solar energy?

A. Solar panels B. Silicon cells C. Mirrors D. Any of the above

Answer: Option (C)
Living world :-Life Processes
1. In Human beings the process of digestion of food begins in:

A. Stomach B. Food Pipe C. Mouth D. Small Intestine

Answer: Option (C)
Explanation: Digestion of food starts as soon as we put food in our mouth. The mouth cavity contains teeth, tongue and salivary glands. The teeth cut the food into small pieces, chew and grind it. The teeth help in physical digestion. The salivary glands help in chemical digestion by secreting enzymes.
2. Which of the following organism have a parasitic mode of nutrition?

A. Penicillium B. Plasmodium C. Paramecium D. Parrot

Answer: Option (B)
Explanation: In parasitic nutrition, organism derives its food from the body of another living organism called host without killing it. Parasitic mode of nutrition is observed in several fungi, bacteria, few plants like Cucuta and some animals like Plasmodium and roundworms. Plasmodium causes malarial disease.
3. Name the first enzyme that mix with food in the digestive tract?

A. Pepsin B. Trypsin C. Amylase D. None of the above

Answer: Option (C)
Explanation: The salivary glands present in mouth secrete salivary amylase enzyme which digests the starch present in food into sugar. Digestion of starch or carbohydrate starts in the mouth itself. Therefore, amylase is the first enzyme that helps in the process of digestion.
Transportation, Excretion
1. Transport of food from leaves to other parts of the plant is called...

A. translocation B. transpiration C. ascent D. translation

Answer: Option (A)
2. Sieve tube is a part of...

A. sieve cells B. xylem C. tracheid D. phloem

Answer: Option (D)
3. Oxygenated blood from lungs enters left atrium through...

A. vena cava B. pulmonary artery C. pulmonary vein D. aorta

Answer: Option (C)
Reproduction, growth, Heredity, and Evolution Reproduction and growth:-Types of Reproduction
1. In humans, average 'ejaculation' produces 3-4 ml of semen that contains nearly;

A. 300 - 400 sperms B. 200-400 sperms C. 100-900 sperms D. 0-10 sperms

Answer: Option (A)
2. 'semen' is received by female's

A. Ureter B. Urethra C. Ovaries D. Vagina

Answer: Option (D)
3. If an animal has the ability to reproduce without normal fertilization and sperm process is called:

A. Fission B. Budding C. Parthenogenesis D. Fragmentation

Answer: Option (C)
Natural Resources
1. Extensive planting of trees to increase forest cover is called

A. Afforestation B. Agroforestry C. Deforestation D. Social forestry

Answer: Option (A)
2. In India, per capita forest cover is

A. 06 ha B. 06 ha C. 6 ha D. 6 ha

Answer: Option (B)
3. Average per capita forest cover for the world is

A. 16 ha B. 34 ha C. 64 ha D. 06 ha

Answer: Option (C)
Carbon Compounds
1. Organic compounds are broadly classified as

A. Open chain compounds and acyclic compounds B. Open chain compounds and linear chain compounds C. Cyclic compounds and alicyclic compounds D. alicyclic compounds and acyclic compounds

Answer: Option (D)
Explanation: Organic compounds are broadly classified into open chain and closed chain compounds.
2. Which among the following is not an aromatic compound(in specific)

A. Naphthalene B. Aniline C. Pyridine D. Tropolone

Answer: Option (C)
Explanation: Pyridine is a heterocyclic aromatic compound. Whereas naphthalene and aniline are benzenoid aromatic compounds and tropolone is a non-benzenoid aromatic compound.
3. Organic compounds can be classified even based upon the functional groups. Identify the one which is not a functional group

A. Isocyanide B. Isocyano C. Carboxyl D. Carbonyl

Answer: Option (A)
Explanation: Isocyanide is a compound and it is not a functional group.

Environment
1. Which of the following is the most abundant Green House Gas (GHG) in the earth’s atmosphere?

A. Nitrogen Dioxide B. Carbon Dioxide C. Water Vapour D. Sulphur Dioxide

Answer: Option (C)
2. Which one of the following is not used for Ex-situ plant conservation?

A. Seed banks B. Field gene banks C. Shifting cultivation D. Botanical Gardens

Answer: Option (C)
3. Which of the following represent a maximum number of species among global biodiversity?

A. Ferns B. Lichens C. Algae D. Fungi

Answer: Option (D)
The Universe
1. The ‘Big Bang Theory’ is related to which of the following?

A. Continental Drift B. Origin of Universe C. Origin of Himalayas D. Eruption of Volcanoes

Answer: Option (B)
Explanation: The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution. Hence, B is the correct option.
2. The Milky Way is classified as_________.

A. Spiral Galaxy B. Electrical Galaxy C. Irregular Galaxy D. Round Galaxy

Answer: Option (A)
Explanation: The Milky Way galaxy is disk-shaped and because spiral galaxies were disk-shaped, the Milky Way was probably a spiral galaxy. Hence, A is the correct option.
3. What is the time taken by the Sun to revolve around the center of our galaxy?

A. 2.5 Crore years B. 10 Crore years C. 25 Crore years D. 50 Crore years

Answer: Option (C)
Explanation: The Sun's completes an almost circular orbit of the center (of the galaxy) about 25 Crore years. Hence, C is the correct option.