Que- Which of the following is an extinct species?
a. Tiger
b. Lion
c. Dodo
d. Ostrich
Answer- Dodo
Explanation- The dodo is an extinct flightless bird that was endemic to the island of Mauritius, east of Madagascar in the Indian Ocean.
Que- _________ is the most inhuman of social crimes.
a. Rape
b. Kidnap
c. Dowry death
d. Robbery
Answer- Dowry death
Explanation- Dowry death is the most inhuman of social crimes.
Que- The word Biophilia was coined by
a. Dr. Hackel
b. Dr.Johanssen
c. Dr. Benjamine
d. E O Wilson
Answer- E O Wilson
Explanation- Biophilia is the term coined by the Harvard naturalist Dr. Edward O. Wilson to describe what he saw as humanity's " innate tendency to focus on life and lifelike processes, " and to be drawn toward nature, to feel an affinity for it, a love, a craving.
Que- Which of the following is the most responsible for world water crisis?
a. Dams
b. Floods
c. Drought
d. Population growth
Answer- Drought
Explanation- Drought is the most responsible for world water crisis.The essence of global water scarcity is the geographic and temporal mismatch between freshwater demand and availability. The increasing world population, improving living standards, changing consumption patterns, and expansion of irrigated agriculture are the main driving forces for the rising global demand for water.
Que- The response of predator to prey and vice-versa, over ten of thousands of years, produces physical and behavioral changes in a process called
a. Co-evolution
b. Evolution
c. Origin
d. Development
Answer- Co-evolution
Explanation- The response of predator to prey and vice versa, over tens of thousands of years, produces physical and behavioral changes in a process known as coevolution. Coevolution can be mutually beneficial: many plants and pollinators have forms and behaviors that benefit each other.
Que- The most important reason why summers in the Southern Hemisphere are not warmer than summers in the Northern Hemisphere is that:
a. The earth is closer to the sun in January
b. The earth is farther from the sun in July
c. Over 80% of the Southern Hemisphere is covered with water
d. The sun's energy is less intense in the Southern Hemisphere
Answer- Over 80% of the Southern Hemisphere is covered with water
Explanation- Over 80% of the Southern Hemisphere is covered with water.
Que- The most important reason for decrease in biodiversity is
a. Habitat pollution
b. Introduction of exotic species
c. Over-exploitation
d. Habitat destruction
Answer- Habitat destruction
Explanation- The main cause of the loss of biodiversity can be attributed to the influence of human beings on the world’s ecosystem, In fact human beings have deeply altered the environment, and have modified the territory, exploiting the species directly, for example by fishing and hunting, changing the biogeochemical cycles and transferring species from one area to another of the planet.
Que- Soil erosion can be prevented by
a. Deforestation
b. Afforestation
c. Overgrazing
d. Removal of vegetation
Answer- Afforestation
Explanation- Soil erosion can be prevented by afforestation.
Que- ____________ is one of the most endangered species of Indian birds
a. Bee eater
b. Paradise fly catcher
c. Owl
d. The great Indian bustard
Answer- The great Indian bustard
Explanation- The Great Indian Bustard is a most endangered species of bird found only in India and adjoining region. Bustard is one of the largest flying species of bird with weight up to 15 kg and about 1 m tall from the ground.
Que- Concept of ecological pyramids was proposed by
a. Odum
b. Clements
c. Tansley
d. Charles Elton
Answer- Charles Elton
Explanation- The concept was first introduced by Charles Elton, the pioneer British Ecologist. The bottom of an ecological pyramid is the broadest and is occupied the producers, which form the first trophic level.
Que- _________ is a practice of clearing and burning the forest area for cultivation of crops for 3-4 years and shifting.
a. Jhum cultivation
b. Horticulture
c. Taungya cultivation
d. Agrisilviculture
Answer- Jhum cultivation
Explanation- In India, the practice of clearing and burning the forest area for cultivation is known as jhum or jhoom. Slash-and-burn can be part of shifting cultivation, an agricultural system in which farmers routinely move from one cultivable area to another.
Que- Growing agricultural crops between rows of planted trees is known as
a. Social forestry
b. Jhum
c. Taungya system
d. Agroforestry
Answer- Taungya system
Explanation- Growing agricultural crops between planted trees are one of these procedures to avoid the land crisis in the India. This process is also known as the taungya farming.In this farming ,the farmers plant crops between the forest plantation rows.
Que- The cutting down of trees and setting them on fire and raising crops on the resulting ash is called:
a. Pyrolysis
b. Jhum
c. Taungya system
d. Shift cultivation
Answer- Jhum
Explanation- In India, the practice of clearing and burning the forest area for cultivation is known as jhum or jhoom. Slash-and-burn can be part of shifting cultivation, an agricultural system in which farmers routinely move from one cultivable area to another.
Que- _____________ is the poisonous gas leaked during Bhopal gas tragedy
a. MIC
b. PVC
c. Teflon
d. Hydrogen Sulphide
Answer- MIC
Explanation- Over 500,000 people were exposed to methyl isocyanate (MIC) gas. The highly toxic substance made its way into and around the small towns located near the plant.
Que- Abbreviation for NGO is
a. non-governmental office
b. national-geographical organization
c. national-governmental organization
d. non-governmental organization
Answer- non-governmental organization
Explanation- NGO is an abbreviation for non-governmental organization.
Que- What is the leading source of energy used in the United States today?
a. coal
b. oil resources
c. natural gas
d. nuclear power
Answer- oil resources
Explanation- Oil resources is the leading source of energy used in the United States today.
Que- A human population is small, there is a greater chance of :
a. gene flow
b. genetic drift
c. natural selection
d. mutation
Answer- genetic drift
Explanation- A human population is small, there is a greater chance of genetic drift.
Que- Which of the following is least likely to contain an oil trap?
a. an anticline
b. fault
c. natural stratigraphy
d. syncline
Answer- syncline
Explanation- Syncline is least likely to contain an oil trap.
Que- During the winter in the Northern Hemisphere, the " land of the midnight sun " would be found:
a. At high latitudes
b. At middle latitudes
c. Near the equator
d. In the desert southwest
Answer- At high latitudes
Explanation- During the winter in the Northern Hemisphere, the " land of the midnight sun " would be found: in high latitudes. During the winter solstice in the Northern Hemisphere, the day is less than 12 hours long and is increasing with each passing day.
Que- Where are the days and nights of equal length all year long?
a. At 66.5o
b. Nowhere
c. At 23.5o
d. At the Equator
Answer- At the Equator
Explanation- At the Equator the days and nights are of equal length all year long
Que- During the winter solstice in the Northern Hemisphere:
a. Astronomical winter begins in the Northern Hemisphere
b. The noon sun is overhead at 23.5o S latitude
c. At middle latitudes in the Northern Hemisphere, this marks the longest night of the year
d. All of the above
Answer- All of the above
Explanation- The summer solstice (or estival solstice), also known as midsummer, occurs when one of the Earth's poles has its maximum tilt toward the Sun. It happens twice yearly, once in each hemisphere (Northern and Southern). For that hemisphere, the summer solstice is when the Sun reaches its highest position in the sky and is the day with the longest period of daylight. Within the Arctic circle (for the northern hemisphere) or Antarctic circle (for the southern hemisphere), there is continuous daylight around the summer solstice. On the summer solstice, Earth's maximum axial tilt toward the Sun is 23.44°. Likewise, the Sun's declination from the celestial equator is 23.44°.
Que- The largest annual ranges of temperatures are found:
a. At polar latitudes over land
b. At polar latitudes over water
c. At middle latitudes near large bodies of water
d. At the Equator
Answer- At polar latitudes over land
Explanation- The largest annual ranges of temperatures are found at polar latitudes over land.
Que- Night time temperatures rarely drop below the dew point temperature because
a. The dew will absorb all the heat
b. Saturation vapor pressures always increase at night
c. At saturation, latent heat of condensation is released into the air
d. Both (b) and (c)
Answer- At saturation, latent heat of condensation is released into the air
Explanation- If the dewpoint happens to be much lower than the temperature, the air will cool off much more rapidly at night than if the dewpoint was closer to the temperature in the evening. This is why dry regions such as the high plains and desert regions have such large differences between the high and low temperature. Moist areas, such as regions near the coast tend to have a smaller spread between the high and low temperature. If the air has a high moisture content, some longwave radiation emitted by the earth's surface will be radiated back toward the surface.
Que- The time of day when the relative humidity reaches a maximum value is usually
a. At the time when the air temperature is highest
b. In the middle of the afternoon
c. At the time when the air temperature is lowest
d. Just before sunrise
Answer- At the time when the air temperature is lowest
Explanation- The relative humidity is usually highest around sunrise when the overnight low temperature is frequently close to the dew point. The humidity drops during the day as the temperature rises and usually reaches its lowest value in the middle or late afternoon when the day's maximum temperature is recorded
Que- Oil derived from coal, oil shales or tar sands is called
a. natural gas
b. biomass
c. syncrude
d. none of the above
Answer- natural gas
Explanation- Oil derived from coal, oil shales or tar sands is called natural gas as it is obtained from nature, nothing artificial. Coal is obtained naturally from the remnant of plants that grew in swamps hundreds of millions of years ago.