Question

Frequency of ultrasonic sound wave is
(a) Greater than 20 HZ (b) Greater than 20,000 HZ
(c) Greater than 2 HZ (d) Greater than 2 MHZ
5. In compression, pressure density is
(a) High
(b) Less
(c) Remains same
(d) Zero
6. Which cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell
(a)Golgi apparatus
(b) Lysosome
(C)Smooth endoplasmic reticulum (d) Vacuoles
7. The lowest category of classification is -
(a) Phylum (b) Genus (c) Species (d) Family
8. Which phylum contains the greatest number of species of animals?
(a) Sponges (b) Molluscs (c) Arthropods
(d) Chordates
9. One of the following factors does not lead to soil formation in nature
(a) The sun (b) Water (c) Wind (d) Polythene bags
10. Which of the following is a pure substance?
a) milk
B) vinegar
C) ice
D) wood​

Answer 1

Answer:

4. (b)Greater than 20,000 HZ

5. (a) High

6. (c)Smooth endoplasmic reticulum

7. (c) Species

8. (c) Arthropods

9.(d) Polythene bags

10. (c) ice

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Answer 2

Answer:

Explanation:

Hi✌️✌️

4. (b)Greater than 20,000 HZ

5. (a) High

6. (c)Smooth endoplasmic reticulum

7. (c) Species

8. (c) Arthropods

9.(d) Polythene bags

10. (c) ice

Please mark as brainliest!!!