Answer:
Human activities have adversely affected the ecosystem because human needs wood for making houses so they cut the trees and the organisms lives there loss their habitat and whole ecosystem is disturbed. Tropical forest is also called lungs of planet earth because they provide oxygen to the atmosphere and absorbs carbondioxide gas in large amounts. About half of world species lives in these forest. If humans continue to cut these forest all the species lives their will be vanished and affected the whole world.
This is called a .............................................. reaction.
Ps. something to do with neurons
Answer:
arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form". The original rock is subjected to heat and pressure, causing profound physical or chemical change. The protolith may be a sedimentary, igneous, or existing metamorphic rock.
hydrogen gas
B.
iron metal
C.
salt water
D.
sugar
Answer:
C.)Salt Water
Explanation:
When salt is dissolved in water is is considered a mixture because it is homogeneous throughout the substance