Tag: environmental science

Quizzes (37) Questions (65)

Questions Related to environmental science

Multiple choice basics of management of water environmental science conservation of resources food production: soil and water management biology

.......... is used in seeding clouds.

  1. Potassium iodide

  2. Calcium carbonate

  3. Sulphur dioxide

  4. Ammonium phosphate
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • An artificial method of rain is called seeding cloud. It is a type of weather modification. 
  • This method aims at to change the amount of precipitation which falls from clouds. The method uses seeding of certain substances into the air that will serve as cloud condensation. 
  • In this, tiny particles like potassium iodide or dry ice are seeded (sprayed) in the atmosphere. 
  • The water present in the air is attracted and condenses near the sprayed particles. 
  • It further crystallises to form ice. Finally, it causes the rainfall. 
  • Thus, the correct answer is option A.
Multiple choice zoology environmental science structure of earthworm earthworm - morphology, integumentary system , respiration and nervous system adaptations

Find out the wrongly matched pair.

  1. Nephridia - Earthworms - help to remove nitrogenous wastes and maintain ionic balance

  2. Malpighian tubules - insects including cockroaches - help in the removal of nitrogenous wastes and osmoregulation

  3. Antennal glands or green glands - excretory organ in the abdominal part of crustaceans like prawns - perform the excretory function

  4. Protonephridia - Rotifers - primarily concerned with ionic and fluid volume regulation
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice zoology environmental science structure of earthworm earthworm - morphology, integumentary system , respiration and nervous system adaptations

In earthworm, pharyngeal, nephridia are present as three paired tuffs in the segments.

  1. $3$rd, $4$th and $5$th
  2. $4$th, $5$th and $6$th
  3. $5$th, $6$th and $7$th
  4. $6$th, $7$th and $8$th
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In earthworms, pharyngeal nephridia are segmentally arranged excretory organs that occur as three paired tufts of nephridia situated in the 4th, 5th, and 6th segments.

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

In earthworm skeleton like function is performed by _______________.

  1. Coelomic fluid

  2. Alimentary canal filled with food

  3. Typhlosole

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

The coelomic fluid in earthworms acts as a hydrostatic skeleton, providing support and allowing for movement through peristalsis.

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

What is common between earthworm and Periplaneta?

  1. Both have red coloured blood.

  2. Both possess anal styles.

  3. Both have Malpighian tubules.

  4. Both have segmented body.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Both earthworm (annelid) and Periplaneta (arthropod) have segmented bodies. In earthworm, the body is metamerically segmented while in Periplaneta, it is externally segmented.

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

Which one of the following correctly described the location of some body parts in the earthworm Pheretima ?

  1. Two pairs of accessory glands in 1618 segments
  2. Two pairs of testes in $10^{th} and 11^{th}$ segments.

  3. Four pairs of spermathecae in 47 segments
  4. One pair of ovaries attached at inter segmental septum of $14^{th} and 15^{th}$ segments.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In Pheretima, testes are located in segments 10 and 11, which is accurate anatomical positioning. Option A incorrectly states 1618 segments instead of 16-18. Option C incorrectly states 47 instead of 5-7 segments for spermathecae. Option D incorrectly places ovaries at 14-15 segments instead of 13.

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

Choose the correct answer from the alternatives given.
The yellowing of leaves, called chlorosis, is usually caused by the deficiency of:

  1. sodium

  2. phosphorus

  3. magnesium

  4. calcium
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A magnesium-deficient crop will tend to have a pale overall colour. The earliest specific symptom of magnesium deficiency is interveinal chlorosis of older leaves. Chlorosis generally progresses to yellowing and necrosis of the oldest leaves. Therefore, without sufficient amounts of magnesium, plants begin to degrade the chlorophyll in the old leaves. This causes the main symptom of magnesium deficiency, interveinal chlorosis, or yellowing between leaf veins, which stay green, giving the leaves a marbled appearance.

So, the correct option is, 'Magnesium'.

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

Earthworm has no special sense organs, still they are sensitive to

  1. Light and sound

  2. touch and sound

  3. Touch, taste and light

  4. Touch, taste, light and vibrating
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In earthworms there are specialised nerves with photoreceptors in the nerve endings present in the skin and the impulses from these nerves are carried rapidly to the muscles of the earthworm. This makes them sensitive to stimuli such as light and sound. 

So, the correct option is 'Light and sound'.

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

The common Indian earthworms are:

  1. Pheretima and Tigrina

  2. Pheretima and Hirudo

  3. Pheretima and Terrestris

  4. Pheretima and Lumbricus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pheretima and Lumbricus are the most commonly studied genera of earthworms in India. Other options include names like Tigrina or Terrestris which are not standard genus-species pairings used to describe common Indian earthworms.