Tag: environmental factors

Quizzes (8) Questions (94)

Questions Related to environmental factors

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

Non living things in an environment is known as

  1. Biotic Factors

  2. Abiotic Factors

  3. Biotic and abiotic factors

  4. All of above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In ecology, the environment is divided into biotic factors (living components) and abiotic factors (non-living components). Abiotic factors include things like sunlight, temperature, water, and soil.

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

Which of the following is not properly matched?

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
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'

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

In what way a plant growing on a forest floor is adapted for its survival?

  1. Has shallow roots

  2. Requires low light

  3. Has a deep ta root

  4. Requires strong light

  5. Requires moist soil
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Plants growing on the forest floor (understorey) are adapted to lower Sunlight intensity or are shade loving. This is because, the dense canopy does not allow enough light to penetrate through and reach the forest floor. Light is the limiting factor for these plants and therefore, they are adapted to survive under low light conditions. Moisture availability and related adaptations are not of consideration. Thus, the correct answer is option B.

Multiple choice botany environmental factors soil-nature climate factors abiotic components

Choose the correct answers from the alternatives given .
Which of the following best describes strata ?

  1. Sedimentary rock layers that contain fossils

  2. Molten rock that contains radioactive material and is dangerous to the health of humans

  3. Sedimentary rock layers that all date from the same historical time

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fossils are the remains of living creatures, both plants, and animals, or their tracks. These are found in sedimentary rock. Sedimentary rock is composed of strata. The term rock strata refer to stacked-up layers of sedimentary rock. Other kinds of rocks can have layering in them, but the word strata are reserved for sedimentary rocks - rocks composed of individual fragments of minerals or other rocks. 

So, the correct option is 'Sedimentary rock layers that contain fossils'.

Multiple choice biology environmental factors soil-nature climate factors abiotic components

In most areas, the warmest time of the day about 5 feet above the ground occurs:

  1. Around noon

  2. In the afternoon between 3 and 5 PM

  3. In the early evening after 6 PM

  4. Just before the sun sets
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The warmest time of the day occurs in the afternoon because there is a lag between the time of maximum solar radiation (noon) and the time when the ground and air reach their peak temperature due to heat absorption and re-radiation processes.

Multiple choice biology environmental factors soil-nature climate factors abiotic components

Suppose last night was clear and calm. Tonight low clouds will be present. From this you would conclude that tonight's minimum temperature will be:

  1. Higher than last night's minimum temperature

  2. Lower than last night's minimum temperature

  3. The same as last night's minimum temperature

  4. Above freezing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Clouds act as a blanket that traps longwave radiation emitted by the Earth's surface. Therefore, a cloudy night prevents heat from escaping into space, resulting in a higher minimum temperature compared to a clear, calm night.

Multiple choice biology environmental factors soil-nature climate factors abiotic components

Which of the following is present in maximum amount in atmosphere ____________.

  1. Oxygen

  2. Nitrogen

  3. Carbon dioxide

  4. Hydrogen
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
78.03% of the atmosphere consists of Nitrogen. Some is being added to it through volcanic eruptions, erosion of sedimentary rocks and recycled through denitrification.
So, the correct answer is 'Nitrogen'