Question

Q1) Multiple choice questions.
A) Nitrogen fixing bacteria is :
i) Lactobacillus ii) Nitrosamines iii) Azatobacter
iv) Rhizobium
B) Micro - organisms spread through:
i) Bacteria ii) Algae
iii) Viruses
iv) Protozoa
C) Which of these is liquid at room temperature.
i) Copper
ii) Iron
iii) Mercury
iv) lead
D) Which of these does not need fuel?
i) Cooking ii) crystallization iii) Transportation iv) Combustion
E) Hen's egg is a/an :
i) Cell
ii) Tissue
iii) Organ
iv) Organ system​

Answer 1

Answer:

A) Nitrogen fixing bacteria is :

iii) Azatobacter

B) Micro - organisms spread through:

Microorganisms capable of causing disease-pathogens-usually enter our bodies through the mouth, eyes, nose or through wounds or bites that breach the skin barrier. Organisms can spread-or be transmitted by several routes.

C) Which of these is liquid at room temperature.

Bromine

D) Which of these does not need fuel?

ii) crystallization

E) Hen's egg is a/an :

i) Cell

Answer 2

Answer:

what is the nitrogen fixing bacteria