Question

(-5)-___=-9
(-50)-___=-10
___×(-3)=12
___×(-2020)=0
(-35)+1=___​

Answer 1

Answer:

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An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. ... Ecosystems can be very large or very small.