Study the four statements $(i-iv)$ given below and select the two correct ones out of them.

$(i)$ A lion eating a deer and a sparrow feeding on grains are ecologically similar in being consumers.

$(ii)$ Predator star fish Pisaster helps in maintaining species diversity of some invertebrates.

$(iii)$ Predators ultimately lead to the extinction of prey species.

$(iv)$ Production of chemicals such as nicotine, strychnine by the plants are metabolic disorders.

The two correct statements are

The least porous soil among the following is a

The Montreal protocol refers to

The impacts of loss of biodiversity may lead to

$I$. lowered resistance to environmental perturbation

$II$. decrease in plant production

$III$, increased variability in ecosystem processes like water use, pest/disease cycle, plants productivity

$IV$. Increase in plant production

Choose the correct option

Plants like Aegle marmelos, Ocimumsanctum and Ficus religiosa are a group of plants designated as

Assertion : Diversity observed in the entire geographical area is called gamma diversity.
Reason : Biodiversity decreases from high altitude to low altitude