An ecosystem resists changes because it is in a state of .........

Which of the following ecosystems would be most stable?

An ecosystem which can be easily damaged but can recover after some time if the damaging effect stops will have:

Classify the following ecosystems into their appropriate groups:
$I-$ Forest,$II-$ Grassland,$III-$ Pond,$IV-$ Desert
$V-$ Lake,$VI-$ Wetland,$VII-$ River,$VIII-$ Estuary
Terrestrial Ecosystem $\quad$ Aquatic Ecosystem

What is the percentage of photosynthetically active radiation $(PAR)$ in the incident solar radiation?

Which of the following is associated with a major ecological role?