"plantlike photosynthesis that releases oxygen (o2) occurs in "

The right answer is cyanobacteria.

Cyanobacteria are a division of Gram-negative aquatic bacteria capable of photosynthesis. About two-thirds of the species studied are capable of stabilizing nitrogen and are therefore involved in the nitrogen cycle in the biosphere.

These cyanophytes contain three pigments, green, blue and red.

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion

satellites are frequently used to make observations of the orbit on earth