Question

Which of the following elements is a metalloid?
a) Sodium b )sulphur c)Silver
2)which among the following is the most reactive metal? a)copper b)calcium c)Torn
Marks: 50 time : hours
d)none of these d)Magnesium d)Magnesium
3)The element which is stored under kerosene is
a) Sulphur b)Calcium c)Torn
4)Satpura National park is a part of ________________Biosphere Reserve.
5)Red Databook Contains a records of _____________ Species.
6) Migratory birds fly to far away places because of _______________ Changes. 7)Binary fission is a method of asexual reproduction (True/False)
8)Amoeba reproduces by budding (True/False)
9)cloning is a sexual reproduction method in mammals.(True/False)
10) AIDS disease is caused by _____________
11)Iodine is necessary for the synthesis of one of the hormones this hormone is _______-- 12)Metamorphosis in amphibians is brought about by ___________ hormone.
13)Give one example of each are (each one mark)
(a) By Vibrating strings____________
(b) By vibrating air columns ________________
(c) By Vibrating membranes__________________
(d) By Vibrating plates ____________________
14) Match item in column A With one or more items in column B (Each carry 1 mark)
AB
1) Inner planets 2)Outer planets 3)Constellation
4) Satellite of the Earth
(a) Saturn (b)Pole star (c) Great Bear (d) Moon
(e) Earth (f) Orion (g)Mars

Answer 1

Explanation:

1. I think so it will be sulphur