Because pesticides and chemical fertilizers can harm crops
Answer:Causes of Global warming
Explanation:
Where are the extra Green house gases coming from?
Most scientist think that human activities such as burning fossil fuels, using cars and other vehicles ,and clearing forest have increased the amount of carbon dioxide in the atmosphere. There are green house gases in our atmosphere,e.g. water vapor , carbon dioxide , methane nitro us dioxide and ozone.
They absorb heat from Sun rays and radiate in all directions, which warm's the Earth.The Earth could become too hot and this causes climate change which has a lot of effects on Earth. Earth's dry regions will become more drier and wet regions will become more wetter e.g.
Answer:
B
Explanation:
analysis of the system affects the environment on which you are sudying
Answer:
Explanation:
Given
Parallel to: 
Passes through (-9,-4)
Required
Determine the line equation
First, we calculate the slope (m) of the said line
Make y the subject
Divide through by 3
An equation has the general form:
Where
So:
Because the required line is parallel to , then they have the same slope of
Next, is to calculate the line equation using:
Where
This gives:
Open bracket
