Water Test - 2...

Match the following:
 

Which of the following options shows the correct sequence of waste management?

Which of the following statements is/are false?

(a) Empty glass bottles are reusable.
(b) Domestic sewerage is an example of biodegradable waste.
(c) Plastic waste is biodegradable.
(d) To keep the environment clean, we should recycle the waste.

Which of the following is not a non-biodegradable waste?

Which of the following statements is/are false?

a. Stray animals often get killed when they swallow plastic bags from the garbage dumps.
b. Burning of polythene bags is an effective method of waste disposal.
c. Waste management is a huge challenge because of the excessive use of plastic.

Analyse the two statements given below and select the correct option.

Statement I: Air is a mixture of different gases.
Statement II: The different gases in the atmosphere forms different layers, with the heaviest gas forming the bottom-most layer.

Match the components of air given under left column with their characteristics given under right column:
 

Analyse the given statements:

A. Air is a compound formed by chemical reactions between different gases.
B. Air displays the properties of all the component gases.
C. The gases in the air are essential for the sustenance of life on the Earth.
D. The dust particles in the air play an important role in the formation of clouds.

Which of the following options is the correct analysis of the statements?