Answer:
1. A tundra is a type of biome where the tree growth is hindered by low temperatures and short growing seasons.
2. A savanna or savannah is a mixed woodland-grassland ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close.
3. An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea.
Answer:
Sandy soil
Explanation:
Water movement in soils is called <em>soil hydrology.</em> The soil texture, the soil structure and gravity affects soil hydrology.
In sandy soil, the particles are largest compared to other types of soils, and these particles are held loosely together.
Water will move laterally in the soil profile if there is enough pore space in that soil (which sandy soils possess). This movement is aided by the capillary action of water in small spaces. The water will bind to the edges of the pores and slowly move laterally and even upward if the voids are small enough.
They can maintain a government. They get raided by neighboring countries. They have ridiculous resources... Which is why they were constantly colonized. D is my answer.
A biome is defined as the large ecological area where the formation of plants and animals with common characteristics gather due to the similar climates. If I were an ecologist, and i will be determining whether an entire river and lake biome is being threatened by human activity, the indicator species that i might look for are the ones that have been introduced into the biome.