Tag: environmental science

Quizzes (37) Questions (65)

Questions Related to environmental science

Multiple choice zoology environmental science structure of earthworm earthworm - morphology, integumentary system , respiration and nervous system adaptations

Match the following

Sr. No  Column -I Sr.No Column -II
a. Earthworms i Network of tube
b. Aquatic arthropods  ii Lungs 
c. Molluscs iii Gills
d. Terrestrial organisms iv Moist cuticle
e. Insects

  1. a-i;b-ii;c-iii;d-iv;e-iii

  2. a-iv;b-iii;c-iii;d-ii;e-i

  3. a-iv;b-ii;c-i;d-iii;e-iii

  4. a-iv;b-ii;c-iii;d-i;e-iii
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Matching respiratory organs to animal groups: earthworms respire through a moist cuticle (a-iv), aquatic arthropods use gills (b-iii), molluscs typically use gills or ctenidia (c-iii), and terrestrial organisms use lungs or tracheal systems depending on the group.

Multiple choice biology environmental science plant adaptation adaptation in plants plant habitat

The bats are able to fly in dark since their mouth produce?

  1. Sound waves

  2. Ultrasonic waves

  3. Infrared rays

  4. Ultraviolet rays
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bats navigate and locate obstacles or prey in total darkness by emitting high-frequency ultrasonic waves and listening to the returning echoes. This biological sonar system is known as echolocation.

Multiple choice biology environmental science plant adaptation adaptation in plants plant habitat

The bats are able to fly in dark since their mouth produce

  1. Sound waves

  2. Ultrasonic waves

  3. Infrared rays

  4. Ultraviolet rays
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Every night a bat puts in 600-700 kilometres of airtime. Flying low, the animals catch insects at speeds of around 40 metres per second. At night the bat uses its hearing to navigate its way to prey. Bats catch insects continuously using echolocation, an advanced navigation system. The bat emits ultrasonic waves with very high frequencies. Its calls are pitched at 20-100 kilohertz, a frequency that is too high-pitched for humans to hear naturally. Their sounds are reflected in the environment, hitting various objects and returning to the bat as echoes. The echo signals enable the bat to form a mental map of its surroundings.
So the correct option is 'ultrasonic waves'.
Multiple choice zoology environmental science personal and public cleanliness who will do this? basics of water pollution

If large quantities of domestic sewage is continuously emptied into a small stream, it leads to

  1. depletion of oxygen content in stream water

  2. depletion of nutrients in the stream water

  3. enrichment of oxygen content in stream water

  4. increase in the total amount of life in the stream water.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

If large quantities of domestic sewage are continuously emptied into a small stream, it leads to depletion of oxygen content in stream water as microbes that develop to degrade the organic matter shall consume the oxygen and reduces its amount.

So the correct option is 'depletion of oxygen content in stream water'