it is said that the affect of harmful chemicals are most in the top carnivores but they are also eaten up by the decomposers. so my ? is that “are decomposers also get affected by those chemicals or not ? if yes then what is the quantity of that affect or if not then why not?

What type of questions asked from the lesson of magnetic effect of electric current 

Wavelength of green light is

A) 400-450 nm

B) 500-550 nm

C) 660-720 nm

D) 720-800 nm

What is the difference between anaerobic & aerobic respiration? Name some organism that uses the aerobic mode of respiration?

What are the main components of our environment? Explain each of them briefly.

What are examples of hydrotropism plants?