The answer is:
13. B
14. D
15. A
The Green-House Effect is: <span>The exchange of incoming and outgoing radiation that warms the Earth</span><span><span>
Steps:
1)The sun provides energy to the Earth. This energy then enters the Earth’s atmosphere.
2)</span><span>The Earth’s surface absorbs most of this energy, which warms the planet.
3)</span><span>Some of the energy is returned back through the atmosphere.
4)</span>But, some of this energy that was to be returned to space is captured by gases (carbon dioxide, methane, and water) in the atmosphere and sent back down to Earth. </span>
Answer:
Gray...............................
Answer:
By measuring the height of a tortoise a scientist is gathering QUANTITATIVE DATA.
Explanation:
There are two basic types of data that can be gathered during scientific investigation, these are qualitative data and quantitative data. Qualitative data are those data that are descriptive in nature, this type of data can not be represented with numbers. One good example of qualitative data is the colour of a substance. For instance: A WHITE rat.
Quantitative data on the other hand are those information that can be recorded in number form. For instance, the height of the tortoise in this question can be measured and the value obtained can be recorded in number form.