Question

whichj object is a system made up of subsystems? A.mineral B. rock C.earth D.box

Answer 1

Well a system is defined as:

A set of connected things or parts forming a complex whole, in particular.
A set of things working together as parts of a mechanism or an interconnecting network.

(In other words a bunch of stuff interacting)

and a sub-system is defined as a system that is part of some larger system. So which answer do you think it is? :)

Answer 2

ummm mineral

Answer 3

Hmmm no, what do you see as interacting as a mineral?

Answer 4

*sorry, in a mineral

Answer 5

idk

Answer 6

Alright well which one of these things (A.mineral B. rock C.earth D.box) do you think you could say ".... has parts within them that effect each other"?

Answer 7

a rock

Answer 8

Hmm I suppose a rock *could* have parts within them that effect each other but do you think they would form an interacting system? Think of it like this, systems usually have changes, they're dynamic, which of those options sound most dynamic?

Answer 9

well i think its between the rock or the earth

Answer 10

(You are right it is between those two) Given the question asks for a system with subsystems and rocks are a part of the earth, which one do you think it is? :)

Answer 11

it hard i think earth because of everything thats in it ecosystems and other things

Answer 12

Well you are exactly right :D it does have all sorts of interacting ecosystems and animals and rocks (known as abiotic factors)! Which make it a system with subsystems :)

Answer 13

yay thank you

Answer 14

no worries, I'm glad you worked it out :D

Answer 15

um and also what is a way that earthworms promote plant growth in soil

Answer 16

not a way

Answer 17

Sorry! I've ran out of time :/ Anyway, just stick it up as a new question (so others can see it) and they'll help you :)

Answer 18

alright