Tag: abiotic components

Questions Related to abiotic components

If the average temperature of the sun increased, the wavelength of peak solar emission would:

botany environmental factors soil-nature climate factors abiotic components

  1. Shift to a shorter wavelength

  2. Shift to a longer wavelength

  3. Remain the same

  4. Impossible to tell from given information

Show answer
Correct Option: A

The minimum temperature in the sea is .......... , while in freshwater ponds it never goes below ..........

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. -3$^o$C, 0$^o$C

  2. -10$^o$C, -4$^o$C

  3. 20$^o$C, -10$^o$C

  4. 25$^o$C, -100$^o$C

Show answer
Correct Option: A
Explanation:

The temperature of the surface waters varies mainly with latitude. The polar seas (high latitude) can be as cold as -2 degrees Celsius (28.4 degrees Fahrenheit), while the Persian Gulf (low latitude) can be as warm as 36 degrees Celsius (96.8 degrees Fahrenheit).
Temperature varies in ponds and lakes seasonally. During the summer, the temperature can range from $4^0$C near the bottom to $22^0$C at the top. During the winter, the temperature at the bottom can be $4^0$C, while the top is $0^0$C (ice).

Thus, the correct answer is option A.

At the North Pole the sun will rise above the horizon on _________ and set below the horizon on __________

botany environmental factors soil-nature climate factors abiotic components

  1. June 22; September 23

  2. September 23; December 22

  3. March 21; September 23

  4. June 22; December 22

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Correct Option: C

Aquatic and terrestrial animals need sulphur and nitrogen to

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Grow

  2. Transpire

  3. Evaporate

  4. Photosynthesis

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Correct Option: A

Scientists are able to determine the air temperature in the thermosphere by:

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Using radiosondes

  2. Using temperature probes in orbiting satellites

  3. Observing changes in satellite orbits

  4. Direct measurements in manned, high-altitude balloons

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Correct Option: C

Initial causes of ecological succession includes:

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Climatic and Biotic factors

  2. Abiotic Factors

  3. Water Vapours

  4. Air Precipitation

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Correct Option: A

In the northern hemisphere, north-facing hillsides have a ____________ growing season than south-facing hillsides.

botany environmental factors soil-nature climate factors abiotic components

  1. Shorter

  2. Longer

  3. Up

  4. Down

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Correct Option: A

Ecotype is a type of species in which environmentally induced variations are

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Temporary

  2. Genetically fixed

  3. Genetically not related

  4. None of the above

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Correct Option: B

Non living things in an environment is known as

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Biotic Factors

  2. Abiotic Factors

  3. Biotic and abiotic factors

  4. All of above

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Correct Option: B

Which of the following is not properly matched?

zoology environmental factors soil-nature climate factors abiotic components organisms and environment

  1. Formaldehyde- Carcinogenic

  2. Sulphur dioxide - Respiratory problems

  3. Nitrogen oxide - Brown air

  4. Mean annual temperature - $25^o$C

  5. Photochemical smog - Grey air

Show answer
Correct Option: D
Explanation:

Mean annual temperature is calculated by subtracting the lowest recorded temperature from the highest recorded temperature of the of the day. It can vary depending on the weather and climate of an area.

A. Formaldehyde has been classified as cancer causing agent by the EPA. It has shown leukaemia incidences.
B. Sulphur dioxide is responsible for the respiratory tract diseases like asthma, bronchitis etc.
C. Nitrogen oxide is called the brown air because of the change in frequencies of absorption of light when nitrogen combines with the oxygen.
D. Mean annual temperature can vary depending on the weather and climatic conditions.
E. Photochemical smog forms grey air due to the formation of ozone and PAN that decreases the visibility.
Hence, the correct answer is 'Mean annual temperature - 25$^{o}$C'