Q1. Choose the correct ans. 1.) Mushroom belongs to a)Virus b)fungi c)Algae d)all of these 2.) The first oil well was drilled in a)UK b)USA c)USSR d)India 3.) 2-4D is a a)insecticides b)pesticides c)weedicides d)Fungicides 4.) Sounds can travel through a) Solids b) Gases c) Liquids d) All of these 5.) The force between two charged bodies is called a) Muscular force b) Magnetic force c) Gravitational force d) Electrostatic force Q2. Answer the Following. 1.) Define atmosphere 2.) Define weedicides and fungicides 3.) A pendulum oscillates 40 times in 2 seconds. Find its time period and frequenc.
Answers
Answer:
1) fungi
2) INDIA
3)WEEDICIDE
4) ALL OF THESE
5) GRAVITATIONAL FORCE
Q. 2 WEEDICIDES ARE THE REPELLENTS OF WEEDS
AND FUNGICIDES ARE REPELLENTS OF FUNGUS
Answer:
1.) Mushroom belongs to
a)Virus
b)fungi √
c)Algae
d)all of these
2.) The first oil well was drilled in
a)UK
b)USA √
c)USSR
d)India
3.) 2-4D is a
a)insecticides
b)pesticides
c)weedicides √
d)Fungicides
4.) Sounds can travel through
a) Solids
b) Gases
c) Liquids
d) All of these √
5.) The force between two charged bodies is called
a) Muscular force
b) Magnetic force
c) Gravitational force
d) Electrostatic force √
Q2. Answer the Following.
1.) Define the atmosphere
The earth's atmosphere has many layers
2.) Define weedicides and fungicides
Fungicides target fungi and their spores, and Herbicides are one weapon in the gardener's armory of methods for weed control.
3.) A pendulum oscillates 40 times in 2 seconds. Find its time period and frequency.
Frequency = 0.1 s
Time period = 10 HZ