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Thepotemich [5.8K]
3 years ago
11

Must all species reproduce in order for the species to survive? *

Chemistry
2 answers:
xz_007 [3.2K]3 years ago
7 0

Answer:

NOPE

Explanation:

vagabundo [1.1K]3 years ago
3 0

Answer:

no

Explanation:

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Which of the following affect climate ?​
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d

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Can you live without chemical reactions
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The atomic masses of any two elements contain the same number of
den301095 [7]

Answer:

They contain of atoms

Explanation:

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3 years ago
1) A light bulb takes in 30 of energy per second. It transfers 3j as use
natta225 [31]

Answer:

\boxed{\text{10 \%}}

Explanation:

The formula for efficiency is  

\begin{array}{rcl}\text{Efficiency} & = & \dfrac{\text{useful energy out}}{\text{energy in}} \times 100 \,\% \\\\\eta & = & \dfrac{w_{\text{out}}}{w_{\text{in}} } \times 100 \,\%\\\end{array}

Data:

Useful energy =  3 J

Energy input  = 30 J

Calculation:

\begin{array}{rcl}\eta & = & \dfrac{\text{3 J}}{\text{30 J}} \times 100 \,\%\\\\\eta & = & 10 \, \%\\\end{array}\\\text{ The efficiency is }\boxed{\textbf{10 \%}}

8 0
3 years ago
It is easier to push a sofa across a rough surface like carpet than a smooth surface like a hardwood floor.
Gelneren [198K]

False, pushing a sofa on a hardwood floor would be easier than on carpet.

3 0
3 years ago
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