Which of the following is/are used as bio-fertilizers?

1. Azolla

2. Blue-green algae

3. Alfalfa

Select the correct answer using the codes given below:

Codes : (A) 2 alone (B) 1 and 2 (C) 1 and 3 (D) 1, 2 and 3 

Even though an animal is fed with carbohydrate rich diet, its blood sugar concentration tends to remain constant. This is on account of the fact that in the case of an animal:

(A) Hormones of pituitary glands control metabolic process

(B) Hormones of pancreas cause such a condition

(C) Blood sugar is readily absorbed by liver

(D) Glucose undergoes autolysis

No. of Satellites needed for global communication is":

(A) 32

(B) 7

(C) 3

(D) 11

If a gas is compressed to half of its original volume at $27°C$, to what temperature should it be heated to make it occupy its original volume?

(A) $327°C$

(B) $600°C$

(C) $54°C$

(D) $300°C$

Which of the following are characteristics shown by a breastfed baby when compared to a bottle-fed baby?

1. It is less obese.

2. It shows the greater capacity to resist disease.

3. It gets more vitamins and proteins.

4. Its growth in height is abnormal.

Select the correct answer from the codes given below.

Codes :

(A) 1, 2 and 3

(B) 1, 2 and 4

(C) 1, 3 and 4

(D) 2, 3 and 4

The basic reason for the extraordinary sparkle of a suitably cut diamond is that:

(A) It has very high transparency

(B) It has a very high refractive index

(C) It is very hard

(D) It has well-defined cleavage planes

In the balanced dietaries for a day of an adult working man, weights of carbohydrate food and total protein food (both superior and inferior) should be in order of:

(A) 600 gm and 420 gm respectively

(B) 600 gm and 500 gm respectively

(C) 420 gm and 600 gm respectively

(D) 420 gm and 420 gm respectively 

Which one of the following animals stores water in the intestine?

(A) Moloch

(B) Camel

(C) Zebra

(D) Uromastix