Question

Tick) the correct answers

1. The emission of which of these ses causes acid rain?
a. sulphur dioxide
b. carbon monoxide
c. hydrogen sulphide
d. methane

2. Which of these is a climate pattern that describes the unusual warmin
of surface waters in the eastern tropical Pacific Ocean?
a . El Nino
b. la Nina
c. el paso
d. el nina

3. Which of these scatters sunlight directly back into space?
a. baerostat
b. dasbestos
c. thermocol
d. aerosol

4. Which of these are widely used as coolants in refrigerators and air conditioner?
a chlorofluorocarbons
b. methane
c. hydrocarbons
d. monocarbons

5. What makes up about 60-80% of all marine debris?
a. oil
b. aluminium
C wood
d. plastic

6 Which of these is one of the most harmful
components of smog?
a. Ozone
b. carbon
C. radium
d. hydrogen

7. Which of these is not a source of indoor air pollution?
a. mold and pollen
b. industrial effluent
c. tobacco smoke
d. pesticides



7 questions 10 point ​

Answer 1

Explanation:

1) Sulphur dioxide

3) aerosol

4)clorofluorocarbon

5)oil

6)ozone

7)tobacco smoke

Answer 2

Answer:

Therefore ,

Height of the cuboid = h = 5cm

I hope this helps you.It is given that ,

Base area of a cuboid = 180sqcm

A = 180 sq cm --( 1 )

Volume ( V ) = 900 cm³---( 2 )

Let height = h cm

V = base area × height

h = V/A

h = ( 900 cm³ )/( 180 cm² )

h = 5 cm

Therefore ,

Height of the cuboid = h = 5cm

I hope this helps you.