Olympiad Class-8 Science Set-2
1 / 25
Which of the following diseases is caused by bacteria?
2 / 25
Spyrogyra is
3 / 25
Microorganisms are
4 / 25
While baking cakes, yeast reproduces rapidly and produces ___ gas.
5 / 25
Rhizobium bacteria
6 / 25
24. _______ are the agents that act as carriers of a pathogen and spread diseases.
7 / 25
The bacterium present in curd is:
8 / 25
Malaria Is caused by
9 / 25
An infectious disease is ___________ .
10 / 25
Amount of nitrogen in the atmosphere is
11 / 25
Which of the following is a disease caused by protozoans?
12 / 25
Mushroom belongs to
13 / 25
Vaccine for small pox is discovered by
14 / 25
Vaccines are made up of:
15 / 25
Which of the following diseases can be cured using antibiotics?
16 / 25
Scientist who discovered fermentation is
17 / 25
Which organisms are microscopic and dependent on host organisms for reproduction?
18 / 25
____ is used for the production of alcohol and wine.
19 / 25
Partial sterilization of a product such as milk at a high temperature is known as:
20 / 25
In order to take precautionary steps to control dengue, we must take measures to stop the breeding of:
21 / 25
Which of the following is a communicable disease?
22 / 25
Living organisms which are invisible to the naked eye are called _________ .
23 / 25
Amoeba belongs to
24 / 25
Penicillium is a
25 / 25
Some plants have nitrogen-fixing bacteria in their root nodules. What are these bacteria called?
Your score is
