An ecosystem with great biological diversity decreases –
F the number of species present in
the ecosystem
G competition between different
species in the ecosystem
Havailable space for organisms in
the ecosystem
J available food supply for
organisms in the ecosystem

H and J

Explanation:

F With great diversity comes and increase in species

G with an increase of animals there is an increase in competition  not a decrease

H and J both seem right since the more animals the more competitive it is for space and food

the awnser is d i think

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.