Number 3 is the plants take in carbon dioxide and release oxygen so that we can breathe and the use the carbon
Answer: 3.2 x 10^ -7
Explanation: move the decimal until there is one number in front of the decimal and then count how many places you moved the decimal and because it becomes a smaller number, the exponent is negative
They can exchange both matter and energy, exchange energy but not matter, Isolated systems can exchange neither energy nor matter.
In a closed system only energy can be exchanged; matter stays inside.
In a open system matter and energy can be exchanged
Answer:
wage employment programmes
food security programmes
