Independent variable: FERTILIZER.
This is the variable that you think affect your dependent variable and so you change it and use different types of it to confirm your prediction.
Dependent variable: COLOR.
That is the variable you are interested in.
Hypothesis: THE TYPE OF FERTILIZER USED IN CULTIVATING HYDRANGEA FLOWER AFFECT THEIR COLOR.
An hypothesis is a generalized statement which predicts the relationship between the variables you are examining.
Control group: THE GROUP THAT DID NOT GET ANY FERTILIZER
The control group is the group that does not receive any treatment.
Experimental groups: THE GROUPS THAT RECEIVED FERTILIZERS.
The experimental group is the group that receives treatment.
Constants: TYPES OF SOIL USED, MORNING SUNLIGHT, WATER AND THE NO OF DAY THE EXPERIMENT LAST.
The constants are the inputs into your experiment which you give to all the groups.
Answer:
Greenhouse gases from human activities are the most significant driver of observed climate change since the mid-20th century.1 The indicators in this chapter characterize emissions of the major greenhouse gases resulting from human activities, the concentrations of these gases in the atmosphere, and how emissions and concentrations have changed over time. When comparing emissions of different gases, these indicators use a concept called “global warming potential” to convert amounts of other gases into carbon dioxide equivalents.
Explanation:
Why does it matter?
As greenhouse gas emissions from human activities increase, they build up in the atmosphere and warm the climate, leading to many other changes around the world—in the atmosphere, on land, and in the oceans. The indicators in other chapters of this report illustrate many of these changes, which have both positive and negative effects on people, society, and the environment—including plants and animals. Because many of the major greenhouse gases stay in the atmosphere for tens to hundreds of years after being released, their warming effects on the climate persist over a long time and can therefore affect both present and future generations.
Answer:
Prophase; when the nuclear envelope breaks down,
prometaphase; the physical barrier that encloses the nucleus, called the nuclear envelope, breaks down
metaphase; The chromosomes line up across the center of the cell
anaphase; The centromeres split
telophase; The chromosomes begin to stretch out and lose their rod-like appearance
Explanation:
Frequency Range
1 Radio waves >0.1m <3×10
9
㎐
2 Micro waves 0.1m−1㎜ 3×10
9
to 3×10
11
㎐
3 Infrared 1㎜ to 7000A° 3×10
11
to 4.3×10
17
㎐
4 Visible light 7000 to 4000A° 4.3×10
14
㎐ to 7.5to10
14
㎐
5 Ultraviolet 4000A° to 10A° 7.5×10
17
to 3×10
17
㎐
6 X-Rays 10A° to 0.01A° 3×10
17
to 3×10
20
㎐
7 Gamma Rays <0.01A° >3×10
20
㎐
Water, carbon, and nitrogen
