Multiple Choice
The main atmospheric layer near the surface of earth is
A) troposphere
B) mesophere
C) ionosphere
D) stratosphere
Correct Answer:
Verified
Correct Answer:
Verified
Q12: In a pyramid of numbers, in a
Q13: Man made sources of radiation pollution are:<br>A)mining<br>B)explosion
Q14: Commonly used radioactive isotopes in scientific research<br>A)14
Q15: Soap and detergents are the source of
Q16: Example of primary pollutant<br>A)SO<sub>2</sub><br>B)NO<sub>2</sub><br>C)CO<br>D)hydrocarbons
Q17: Ozonosphere seen in<br>A)ionosphere<br>B)thermosphere<br>C)mesophere<br>D)stratosphere
Q18: The formula of growth rate for population
Q19: Which of the following is false?<br>A)Quantity of
Q20: Chipco movement is a public agitation that
Q22: Harmful trace metals in fly ash:<br>A)antimony<br>B)cadmium<br>C)arsenic<br>D)all of