Environmental Science MCQs

✅ The correct answer is option B.
Lines joining places of equal temperature are called as Isotherms.

✅ The correct answer is option C.
The Residential and Commercial wastes mainly consist of packaging materials.

✅ The correct answer is option A.
Nanoplankton exists at the size of 60 micro metre.

✅ The correct answer is option B.
As DDT harms the environment it is a pollutant. It is used to kill the mosquitoes thus, it is a chemical insecticide and not antibiotic.

✅ The correct answer is option C.
Red data book is the document established by IUCN for documenting the rare and endangered species of plants, animals, fungi and also a few local species that exist within a state or country.

✅ The correct answer is option C.
The gas that shows the most variation from place to place and from time to time in the lower atmosphere Water vapour (H2O).

✅ The correct answer is option A.
Conduction is the transfer of heat between substances that are in direct contact with each other. The better the conductor, the more rapidly heat will be transferred. Metal is a good conduction of heat. Conduction occurs when a substance is heated, particles will gain more energy, and vibrate more.

✅ The correct answer is option C.
Drought is the most responsible for world water crisis.The essence of global water scarcity is the geographic and temporal mismatch between freshwater demand and availability. The increasing world population, improving living standards, changing consumption patterns, and expansion of irrigated agriculture are the main driving forces for the rising global demand for water.

✅ The correct answer is option D.
The units of measure for radioactivity are the curie (Ci) and becquerel (Bq). Exposure describes the amount of radiation traveling through the air. Many radiation monitors measure exposure. The units for exposure are the roentgen (R) and coulomb/kilogram (C/kg).

✅ The correct answer is option A.
There is little water vapor in the air to absorb and re-radiate infrared radiation.