ecology & bio environment geography section 2 Practice Questions Answers Test with Solutions & More Shortcuts

Answer: (c)

Lions provide important ecological and cultural functions. As apex and keystone predator, lions help to regulate prey populations; they also will scavenge if the opportunity arises.

Culturally, the lion (and particularly the male with its highly distinctive mane) is one of the most widely recognized animal symbols in human culture and the lion plays a key role in save the pastures from being overgrazed.

Answer: (d)

An ecosystem is a community of living and nonliving things that work together. It includes soil, atmosphere, heat and light from the sun, water and living organisms.

Answer: (b)

Taiga is a biome characterized by coniferous forests consisting mostly of pines, spruces and larches. It is the world’s largest terrestrial biome.

Answer: (c)

Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics – mainly between latitudes 25° N and 25° S. There are about 80 different species of mangrove trees.

All of these trees grow in areas with low-oxygen soil, where slow-moving waters allow fine sediments to accumulate.

Answer: (c)

The biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere.

The biosphere is made up of the parts of Earth where life exists. It is the worldwide sum of all ecosystems.