MCQOPTIONS
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MCQOPTIONS
This section includes 500 Mcqs, each offering curated multiple-choice questions to sharpen your SRMJEEE knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The pollution which does not persistent harm to life supporting system is |
| A. | oise pollution |
| B. | adiation pollution |
| C. | rganochlorine pollution |
| D. | ll of these |
| Answer» B. adiation pollution | |
| 52. |
The drug morphine is extracted from _______ plant. |
| A. | ocoa |
| B. | elladonna |
| C. | pium Poppy |
| D. | annin |
| Answer» D. annin | |
| 53. |
Trophic levels are formed by |
| A. | nly plants |
| B. | nly animals |
| C. | nly carnivorous |
| D. | rganisms linked in food chain |
| Answer» E. | |
| 54. |
Eutrophication of water bodies resulting to killing of fishes is mainly due to non-availability of |
| A. | ood |
| B. | ight |
| C. | xygen |
| D. | ssential minerals |
| Answer» D. ssential minerals | |
| 55. |
Water from springs contain dissolved__________ compounds which are used to cure some skin diseases. |
| A. | itric |
| B. | arbon |
| C. | xide |
| D. | ulphur |
| Answer» E. | |
| 56. |
At any given time, ______ of the earth is illuminated by the sun. |
| A. | ne-fourth |
| B. | ne-third |
| C. | ne-half |
| D. | wo-thirds |
| Answer» D. wo-thirds | |
| 57. |
The term "normal" refers to weather data averaged over: |
| A. | t least a day |
| B. | everal months |
| C. | ne year |
| D. | hirty years |
| Answer» E. | |
| 58. |
Thermal belts are usually found |
| A. | n valley floors |
| B. | n hillsides |
| C. | n mountain tops |
| D. | one of the above |
| Answer» C. n mountain tops | |
| 59. |
Macroconsumers include |
| A. | erbivores |
| B. | arnivores |
| C. | mnivores |
| D. | ll the above |
| Answer» E. | |
| 60. |
In an oil trap formed by an anticline, __________ accumulates on top, __________ in the middle, and__________at the bottom. |
| A. | atural gas, oil, groundwater |
| B. | round water, oil, natural gas |
| C. | il, groundwater, natural gas |
| D. | il, natural gas, ground water |
| Answer» B. round water, oil, natural gas | |
| 61. |
A permeable rock that contains hydrocarbon fluids and gases is called a/an |
| A. | il trap |
| B. | ource bed |
| C. | il reservoir |
| D. | one of these |
| Answer» D. one of these | |
| 62. |
The supersonic jets cause pollution by the thinning of |
| A. | O2 layer |
| B. | O2 layer |
| C. | 3 layer |
| D. | 2 layer |
| Answer» D. 2 layer | |
| 63. |
Which of the following is a secondary pollutant |
| A. | O2 |
| B. | O |
| C. | 3 |
| D. | O2 |
| Answer» D. O2 | |
| 64. |
The destruction of the forest areas by man made efforts is called |
| A. | fforestation |
| B. | eforestation |
| C. | on-forestation |
| D. | io forestation |
| Answer» C. on-forestation | |
| 65. |
Most harmful environmental pollutants are |
| A. | atural nutrients in excess |
| B. | uman organic wastes |
| C. | on-biodegradable chemicals |
| D. | aste animal feed |
| Answer» D. aste animal feed | |
| 66. |
Many wild plant and animals are on the verge of extinction due to |
| A. | abitat destruction |
| B. | limatic changes |
| C. | on availability of food |
| D. | one of the above |
| Answer» B. limatic changes | |
| 67. |
A renewable source of energy is |
| A. | etroleum |
| B. | oal |
| C. | uclear fuel |
| D. | rees |
| Answer» E. | |
| 68. |
Nitrogen fixing blue green algae is |
| A. | lostridium |
| B. | hizobium |
| C. | ostoc |
| D. | itrosomonas |
| Answer» D. itrosomonas | |
| 69. |
In the northern hemisphere, a solar panel should be placed on the side of the roof facing: |
| A. | ast |
| B. | est |
| C. | orth |
| D. | outh |
| Answer» E. | |
| 70. |
More solar radiation is received at the: |
| A. | arth |
| B. | op of the atmosphere |
| C. | orth and south poles |
| D. | one of the above |
| Answer» C. orth and south poles | |
| 71. |
The presence of which is necessary for photosynthesis |
| A. | hloroform |
| B. | hlorophyll |
| C. | hosphorus |
| D. | olymer |
| Answer» C. hosphorus | |
| 72. |
Nuclear accidents mostly release radioactive__________ into the atmosphere |
| A. | arbon |
| B. | odine |
| C. | hosphorus |
| D. | ulphur |
| Answer» C. hosphorus | |
| 73. |
Eutrophication results from |
| A. | gricultural and sewage water |
| B. | ehicle exhaust |
| C. | esticides |
| D. | ndustrial effluents |
| Answer» B. ehicle exhaust | |
| 74. |
Natural earthquakes are caused by __________ |
| A. | arth's crust |
| B. | eep seas |
| C. | eak mountains |
| D. | orests |
| Answer» B. eep seas | |
| 75. |
Which of the following group of gases cause photochemical smog? |
| A. | zone, PAN and CO |
| B. | C, NO and PAN |
| C. | 2, PAN, and NO2 |
| D. | 3, PAN and NO2 |
| Answer» E. | |
| 76. |
Renewable energy resources are mostly based on |
| A. | iomass |
| B. | ossil fuels |
| C. | uclear power |
| D. | uclear power |
| Answer» B. ossil fuels | |
| 77. |
Man made sources of radiation pollution are: |
| A. | ining |
| B. | xplosion of nuclear weapons |
| C. | uclear fuels and preparation of radioactive isotopes |
| D. | ll of these |
| Answer» E. | |
| 78. |
Which of the following spatial units is the largest in terms of scale? |
| A. | iver segments |
| B. | esohabitats |
| C. | atches |
| D. | iver reaches |
| Answer» B. esohabitats | |
| 79. |
Which of the following interactions will not promote co evolution? |
| A. | ommensalism |
| B. | utualism |
| C. | arasitism |
| D. | nterspecific competition |
| Answer» B. utualism | |
| 80. |
Mycorrhiza represents |
| A. | ymbiotic association between a fungus and liverworts |
| B. | arasitic association between a fungus and an alga |
| C. | arasitic association between a fungus and roots of plants |
| D. | ymbiotic association between a fungus and roots of higher plants |
| Answer» E. | |
| 81. |
What is the man-made greenhouse gas known as? |
| A. | arbon dioxide |
| B. | FC |
| C. | zone |
| D. | ater Vapour |
| Answer» C. zone | |
| 82. |
Plants which grow in light are called |
| A. | ciophytes |
| B. | eliophytes |
| C. | xylophytes |
| D. | piphytes |
| Answer» C. xylophytes | |
| 83. |
Grassland of USA is referred to as |
| A. | rairies |
| B. | teppes |
| C. | ampas |
| D. | eldts |
| Answer» B. teppes | |
| 84. |
Gas released during photosynthesis is |
| A. | ethane |
| B. | itrogen |
| C. | xygen |
| D. | arbon dioxide |
| Answer» D. arbon dioxide | |
| 85. |
The ozone at ground level is primarily from__________ precursors. |
| A. | ossil fuel |
| B. | FCs |
| C. | xygen |
| D. | ethane |
| Answer» B. FCs | |
| 86. |
What do you call the rain that contains chemical waste and cause damage to plants and animals? |
| A. | mog |
| B. | cid rain |
| C. | onsoon rain |
| D. | easonal rain |
| Answer» C. onsoon rain | |
| 87. |
Diversity of organisms include three Domains such as |
| A. | acteria, archae, eukarya |
| B. | inomial system of classification |
| C. | onera, protista, fungi, plantae, animalia |
| D. | embrane bound organelles, no peptidoglycan in cell walls, introns |
| Answer» B. inomial system of classification | |
| 88. |
The density of water vapour in a given parcel of air is expressed by the: |
| A. | bsolute humidity |
| B. | elative humidity |
| C. | ixing ratio |
| D. | pecific humidity |
| E. | aturation vapor pressure |
| Answer» B. elative humidity | |
| 89. |
The change of state of ice into water vapour is known as: |
| A. | eposition |
| B. | ublimation |
| C. | elting |
| D. | ondensation |
| E. | rystallization |
| Answer» C. elting | |
| 90. |
A pond, serves as a good example for a__________ water ecosystem. |
| A. | resh |
| B. | rackish |
| C. | arine |
| D. | ea |
| Answer» B. rackish | |
| 91. |
Plants that grow in saline water-logged habitat are called |
| A. | erophytes |
| B. | alophytes |
| C. | angroves |
| D. | esophytes |
| Answer» D. esophytes | |
| 92. |
MAB stands for |
| A. | an and biosphere |
| B. | an, antibiotics and bacteria |
| C. | an and biotic community |
| D. | ayer, Anderson and Bisby |
| Answer» B. an, antibiotics and bacteria | |
| 93. |
MAB program stands for |
| A. | an and biotechnology |
| B. | aterial and biology |
| C. | an and Biology |
| D. | an and Biosphere |
| Answer» E. | |
| 94. |
What is the leading source of energy used in the United States today? |
| A. | oal |
| B. | il resources |
| C. | atural gas |
| D. | uclear power |
| Answer» C. atural gas | |
| 95. |
Abbreviation for NGO is |
| A. | on-governmental office |
| B. | ational-geographical organization |
| C. | ational-governmental organization |
| D. | on-governmental organization |
| Answer» E. | |
| 96. |
Which phytoplankton exists at the size of 60 micro metre? |
| A. | anoplankton |
| B. | ltraplankton |
| C. | et plankton |
| D. | icoplankton |
| Answer» B. ltraplankton | |
| 97. |
Animals and plants are best protected in |
| A. | oos |
| B. | otanical Gardens |
| C. | ational Parks |
| D. | anctuaries |
| Answer» D. anctuaries | |
| 98. |
Death rate of the population |
| A. | ortality |
| B. | iability |
| C. | atality |
| D. | itality |
| Answer» B. iability | |
| 99. |
CFC releases a chemical which is harmful to ozone is |
| A. | hlorine |
| B. | luorine |
| C. | 2O |
| D. | O2 |
| Answer» B. luorine | |
| 100. |
The green house gases, otherwise called radioactively active gases includes |
| A. | arbon dioxide |
| B. | H4 |
| C. | 2O |
| D. | ll of these |
| Answer» E. | |