A rapid growth of photosynthetic algae in water develops 'bloom'.… - Vidyadip

MCQ

A rapid growth of photosynthetic algae in water develops 'bloom'. How would it affect the environment of water?

A
The environment becomes comfortable for all forms of life.
✓
$\mathrm{O}_2$ level is decreased or $\text{BOD}$ becomes high.
C
$\mathrm{O}_2$ level of water is increased.
D
Fish production is increased.

✓

Answer

Correct option: B.

$\mathrm{O}_2$ level is decreased or $\text{BOD}$ becomes high.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Environmental Issues→Environmental Issues — all question types→BIOLOGY STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

The fish used for control of malaria is

Plants such as Prosop is, Acaciaand Capparis represent examples of tropical.

How many meiotic division would be required to produce $101$ female gametophytes in an angiosperm

Which of the following is/are true?

$I$. Biowar is the use of biological weapons against humans and/or their crops and animals.

$II$. Bioethics is the unauthorized use of bioresounces and traditional knowledge related to bioresources for commercial benefits.

$III$. Biopatent is exploitation of bioresources of other nations without proper authorization.

Organic forming does not include

Lal Bahadur Shastri biotechnological centre is in:

The species, though insignificant in number, determine the existence of many other species in a given ecosystem. Such species is known as:

Deforestation has an alarming effect on

Choose example of man-made ecosystem.

Which of the given statement is correct in the context of observing $\text{DNA}$ separated by agarose gel electrophoresis?