Environmental Biotechnology MCQs

Question 1

Which one of the following is not biodegradable?

Accepted Answer

Aluminium foil

Answer

Vegetables

Answer

Fruits

Answer

Earthworm

Question 2

Plants suitable for bio monitoring of SO2 pollution are

Accepted Answer

White pine, Moss and Lichens

Answer

Tobacco, Grapes and Garden bean

Answer

Apricot, Peach and Gladiolas

Answer

Tomato and Lettuce

Question 3

In colloidal chemical substance, the light undergoes

Accepted Answer

Scattering

Answer

Diffraction

Answer

Polarization

Answer

Total internal reflection

Question 4

Four stages viz Initiation, inventory analysis, impact, assessment and improvement assessment are associated with

Accepted Answer

EIS (Environmental Impact Statement)

Answer

LCA

Answer

EIA (Environmental Impact Assessment)

Answer

Environmental Audit

Question 5

Richael Carsson in her book Silent Spring has classified as raised concern on

Accepted Answer

Impacts of agro-chemicals on ecological functions

Answer

Economical and social impacts

Answer

Deforestation

Answer

Climate change

Question 6

Biodegradable pollutant is

Accepted Answer

Sewage

Answer

Plastic

Answer

Asbestos

Answer

Mercury

Question 7

How many sites as potential areas for biosphere reserves have been identified by the national MAB committee for the department of environment?

Accepted Answer

13

Answer

23

Answer

33

Answer

43

Question 8

According to IPCC, during the 20th century Earth's mean surface temperature has risen by

Accepted Answer

Approx 0.8°C

Answer

Approx 0.4°C

Answer

Approx 0.6°C

Answer

Approx 1.0°C

Question 9

When a bottle of fully packed water in plastic bottle is fully frozen, then while opening

Accepted Answer

Due to both increased pressure and density inside the bottle, the bottle shrinks in size

Answer

The empty space develops inside the bottle due to less total volume

Answer

Due to increased pressure inside the bottle, the bottle cracks

Answer

Due to increased volume inside the plastic bottle, the bottle cracks