Question

(1) A solution turns red litmus blue, its pH is likely to be :
(a) 1
(b) 4
(0) 5
(d) 10
(ii) The kidneys in human beings are a part of the system for :
(a) nutrition
(b) respiration
(c) excretion
(d) transportation
(iii) The human eye forms the image of an object at its :
(a) a cornea
(b) iris
(c) Pupil
(d) reting
(iv) S.I. unit of electric current is -
(b) Watt
(a) Joule
(c) Volt
(d) Ampere
Which of the following constitute is a food chain ?
(a) Grass, wheat and mango (b) Grass, goat and huma
(c) Goat, cow and elephant (d) Grass, fish and goat
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Answer 1

Hey mate ☺

1. (d)10

2. (c) excretion

3. (d) retina

4. (d) Ampere

5. (b) grass->goat->human

Hope it helps you☺✌✌

Answer 2

Hello user !

Answer :

1) [d] 10

Reason: Basic in nature.

Bases Ron's red litmus blue

2) [c] Excretion.

Reason : Kidneys eliminate the nephric filtrate.

3) [d] retina

4[d] ampere

One ampere is the amount of current that deposit 0.00118 g of Silver at cathode in silver nitrate solution.
5)[b] grass, goat , human

Hope it helps ❤ ❤