NCERT 2022 | सूक्ष्मजीव : मित्र एवं शत्रु - L4 |Microorganisms| CLASS8 विज्ञान | 8AM | Subhadra Mam

What volume of oxygen gas (O_(2)) measured of 0^(@)C and 1 am needed to burn completely 1 L of propane gas (C_(3) H_(8)) measured under the same conditions?

In Delta PQR, l(PQ) = 4 cm, l (QR) = 4 cm, l (PR) = 8 cm. Can you draw this triangle ? Why ?

The product of the L.C.M. and H.C.F. of two numbers is 24. The difference of two numbers is 2. Find the numbers. (a) 2 and 4 (b) 6 and 4 (c) 8 and 6 (d) 8 and 10

In a class room the ratio of number of girls to that of boys is 3:4 . The average height of students in the class is 4.6feet. If the average height of the boys in the class is 4.8 feet, then what is the average height of the girls in the class?

The average of the weights of boys in a class is 69.3 kg and that of girls in the same class is 59.4 kg. If the average of the weights of all the boys and girls in the class is 63.8 kg. then the percentage of the number of girls in the class is:

The average weight of the boys in a class is 69.3 kg and that of the girls in the same class is 59.4 kg. If the average weight of all the boys and girls in the class is 63.8 kg, then the percentage of the number of boys in the class is:

Area of a rectangle = L xx B Perimeter of a rectangle = 2(L + B) where L and B are the length and breadth of the rectangle respectively. The breadth of a rectangle of length 4 m and area 8.4 m^(2) is

Mark correct statement: a) CD-4 cell binds with MHC-class I receptor b) CD-4 cell binds with MHC-class II receptor c) CD-8 cell binds with MHC-class I receptor d) CD-8 cell binds with MHC-class II receptor

55. Manoj sleeps every night at 9:30 am and 8:30 am __ getting up. Find the total time of his sleep. (1) 8 hours (2) 11 hours (3) 8 hours (4) 7- hours