MCQOPTIONS
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MCQOPTIONS
This section includes 6820 Mcqs, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 3201. |
Which type of rock may contain fossils? |
| A. | Igneous |
| B. | Metamorphic |
| C. | Sedimentary |
| D. | Crystals |
| Answer» D. Crystals | |
| 3202. |
The fresh water on the Earth is ________ of the total water. |
| A. | 2.5 |
| B. | 0.5 |
| C. | 0.75 |
| D. | 1 |
| Answer» B. 0.5 | |
| 3203. |
The mass is highly concentrated form of |
| A. | Weight |
| B. | Energy |
| C. | Force |
| D. | Momentum |
| Answer» C. Force | |
| 3204. |
The Tectonic Plates of the Earth lies in |
| A. | Inner Core |
| B. | Outer Core |
| C. | Lithosphere |
| D. | Asthenosphere |
| Answer» D. Asthenosphere | |
| 3205. |
There are ________ major tectonic plates. |
| A. | 0.025 |
| B. | 5 |
| C. | 6 |
| D. | 7 |
| Answer» E. | |
| 3206. |
The diameter of the Earths equator is larger than the pole-to-pole diameter by |
| A. | 40 km |
| B. | 43 km |
| C. | 46 km |
| D. | 49 km |
| Answer» C. 46 km | |
| 3207. |
Absolute zero, which is the lower limit of the thermodynamic temperature scale, is equivalent to ________ on the celsius scale. |
| A. | -273 oc |
| B. | 0 oc |
| C. | 100 oc |
| D. | 973 oc |
| Answer» B. 0 oc | |
| 3208. |
Rocks which are formed by high temperature and pressure on existing rocks over a period of time are called ________ rocks. |
| A. | igneous |
| B. | metamorphic |
| C. | sedimentary |
| D. | crystal |
| Answer» C. sedimentary | |
| 3209. |
The average salinity of the Earths oceans in 1 kilogram of sea water is about ________ grams of salt. |
| A. | Iron |
| B. | 25 |
| C. | 30 |
| D. | 35 |
| Answer» E. | |
| 3210. |
Marble and slate are examples of |
| A. | igneous rocks |
| B. | metamorphic rocks |
| C. | sedimentary rocks |
| D. | crystals |
| Answer» C. sedimentary rocks | |
| 3211. |
The visible cloud of dust and gas in space is called? |
| A. | 90 |
| B. | Supernova |
| C. | Nebula |
| D. | Galaxy |
| Answer» D. Galaxy | |
| 3212. |
Sandstone and limestone are examples of |
| A. | igneous rocks |
| B. | metamorphic rocks |
| C. | sedimentary rocks |
| D. | crystals |
| Answer» D. crystals | |
| 3213. |
Molten rock above the surface of the Earth is called? |
| A. | Lava |
| B. | Magma |
| C. | Crystals |
| D. | Granite |
| Answer» B. Magma | |
| 3214. |
The metal which is liquid at room temperature is? |
| A. | Zinc |
| B. | Nickol |
| C. | Lead |
| D. | Mercury |
| Answer» E. | |
| 3215. |
Between the melting point and boiling point of a substance, the substance is a? |
| A. | Solid |
| B. | Liquid |
| C. | Gas |
| D. | Crystal |
| Answer» C. Gas | |
| 3216. |
Which from the following is NOT a non-renewable energy resource? |
| A. | Coal |
| B. | Natural gas |
| C. | Nuclear |
| D. | Geothermal |
| Answer» E. | |
| 3217. |
Current is the flow of |
| A. | Volt |
| B. | Protons |
| C. | Neutrons |
| D. | Voltage |
| Answer» B. Protons | |
| 3218. |
When molten rock cools and solidifies, the ________ are formed. |
| A. | igneous rocks |
| B. | satimantary rocks |
| C. | metamorphet rocks |
| D. | none of these |
| Answer» B. satimantary rocks | |
| 3219. |
Which from the following is NOT a renewable energy resource? |
| A. | Geothermal |
| B. | Biomass |
| C. | Solar |
| D. | Nuclear |
| Answer» E. | |
| 3220. |
Energy can be converted from one form to another, but all energy ends up as |
| A. | Kinetic energy |
| B. | Potential energy |
| C. | Heat energy |
| D. | Chemical energy |
| Answer» D. Chemical energy | |
| 3221. |
A battery converts ________ into electrical energy. |
| A. | Potential energy |
| B. | Chemical energy |
| C. | Nuclear energy |
| D. | Mechanical energy |
| Answer» C. Nuclear energy | |
| 3222. |
The unit of efficiency is |
| A. | Volt |
| B. | Watt |
| C. | Joules |
| D. | None of these |
| Answer» E. | |
| 3223. |
Which from the following is NOT a stored energy? |
| A. | Thermal |
| B. | Gravitational |
| C. | Elastic potential energy |
| D. | Chemical |
| Answer» B. Gravitational | |
| 3224. |
Nucleus was discovered by |
| A. | Robert Brown |
| B. | James Chadwick |
| C. | F.W. Aston |
| D. | Rutherford |
| Answer» E. | |
| 3225. |
Which from the following methods of heat transfer can take place in a vaccum? |
| A. | Canduction |
| B. | Convection |
| C. | Radiation |
| D. | All |
| Answer» D. All | |
| 3226. |
The entropy of the universe is |
| A. | Increasing |
| B. | Decreasing |
| C. | Constant |
| D. | None of these |
| Answer» B. Decreasing | |
| 3227. |
Mass Spectrograph was invented by |
| A. | Einstein |
| B. | James Chadwick |
| C. | F.W. Aston |
| D. | Rutherford |
| Answer» D. Rutherford | |
| 3228. |
One way of transfer of heat energy is convection which occurs in |
| A. | Liquids only |
| B. | Gasses only |
| C. | Liquids and gasses |
| D. | Liquids, gasses and solids |
| Answer» D. Liquids, gasses and solids | |
| 3229. |
The key factor in determining the weather is the quantity of ________ in the atmosphere. |
| A. | Water vapour |
| B. | Oxygen |
| C. | Carbondioxide |
| D. | Hydrogen |
| Answer» B. Oxygen | |
| 3230. |
Which from the following is incompressible |
| A. | Solids |
| B. | Liquids |
| C. | Gasses |
| D. | All are compressible |
| Answer» C. Gasses | |
| 3231. |
The nearest planet to the Sun is |
| A. | Mercury |
| B. | Venus |
| C. | Mars |
| D. | Jupiter |
| Answer» B. Venus | |
| 3232. |
The most abundant element in the earths crust is oxygen. The second most abundant element in the earths crust is |
| A. | Mercury |
| B. | Nitrogen |
| C. | Brass |
| D. | Silicon |
| Answer» E. | |
| 3233. |
A person seated in front of a fire receives heat by |
| A. | Conduction |
| B. | Convection |
| C. | Radiation |
| D. | None of these |
| Answer» D. None of these | |
| 3234. |
If we heat one end of metallic rod, the other end gets hot. The method of heat transfer is |
| A. | Conduction |
| B. | Convection |
| C. | Radiation |
| D. | None of these |
| Answer» B. Convection | |
| 3235. |
The unit used to measure ‘magnetic flux’ is |
| A. | pascal |
| B. | farad |
| C. | weber |
| D. | henry |
| Answer» D. henry | |
| 3236. |
Battery was invented by |
| A. | Volta |
| B. | Hero |
| C. | Fermi |
| D. | Maiman |
| Answer» B. Hero | |
| 3237. |
Which from the following is NOT a method of heat transfer? |
| A. | Conduction |
| B. | Convection |
| C. | Radiation |
| D. | All are methods of heat transfer |
| Answer» E. | |
| 3238. |
There are __________ methods of heat transfer. |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 6 |
| Answer» B. 4 | |
| 3239. |
Sound waves from a loudspeaker are caused by |
| A. | 4 |
| B. | vibrations |
| C. | pitch |
| D. | amplitude |
| Answer» C. pitch | |
| 3240. |
The guitar has __________ strings. |
| A. | Cardiograph |
| B. | 5 |
| C. | 6 |
| D. | 7 |
| Answer» D. 7 | |
| 3241. |
The number of oscillations per second is called the |
| A. | hertz |
| B. | waves |
| C. | pitch |
| D. | frequency |
| Answer» E. | |
| 3242. |
Mitochondria contain their own supply of |
| A. | DNA |
| B. | Amino acids |
| C. | Vitamins |
| D. | Oxygen |
| Answer» B. Amino acids | |
| 3243. |
During photosynthesis, plants |
| A. | take in Carbon Dioxide |
| B. | take in Oxygen |
| C. | give off Carbon Dioxide |
| D. | give off Oxygen |
| Answer» E. | |
| 3244. |
The first chemical explosive, Gunpowder, is a mixture of |
| A. | Sulfur, Charcoal and Nitrogen Oxide |
| B. | Sulfur, Charcoal, and Potassium Nitrate |
| C. | Sulfur and Charcoal |
| D. | Charcoal and Potassium Nitrate |
| Answer» C. Sulfur and Charcoal | |
| 3245. |
__________ are called the powerhouses of the cell. |
| A. | Mitochondria |
| B. | Vesicles |
| C. | Lungs |
| D. | Liver |
| Answer» B. Vesicles | |
| 3246. |
In night, when photosynthesis is stopped, plants |
| A. | take in Carbon Dioxide |
| B. | take in Oxygen |
| C. | give off Carbon Dioxide |
| D. | give off Oxygen |
| Answer» D. give off Oxygen | |
| 3247. |
In general, wind speed of 105–137 caused |
| A. | minor or no damage |
| B. | considerable damage |
| C. | severe damage |
| D. | extreme damage |
| Answer» B. considerable damage | |
| 3248. |
Acid rain is mainly caused by emissions of __________ in the atmosphere. |
| A. | Oxygen |
| B. | Sulfur and Charcoal |
| C. | Nitrogen Oxide and Potassium Nitrate |
| D. | Sulfur Dioxide and Nitrogen Oxide |
| Answer» E. | |
| 3249. |
Water covers __________ of the Earths surface. |
| A. | 0.6 |
| B. | 0.65 |
| C. | 0.7 |
| D. | 0.75 |
| Answer» D. 0.75 | |
| 3250. |
About 50% of the Earth’s crust, including the waters on the Earth and atmosphere, is |
| A. | Water |
| B. | Cabon Dioxide |
| C. | Silicon |
| D. | Clay |
| Answer» B. Cabon Dioxide | |