Answer:
Hypothesis---experiments----results----conclusion.
Explanation:
First we make a hypothesis means a statement about why the tree looks unhealthy. In this segment of scientific method we have to test the hypothesis through experimentation. After that we have to take the readings of various parts of the tree and analyze the data to find out the problem. In the next step, we have to made the results on the basis of the data that is obtained. In the last we have to write the conclusion of the analysis and see the hypothesis.
The correct answer is - False.
The funding for the preservation of the forests should be equally distributed for all the forests on the planet. The tropical rain forests are the thickest, the ones that have the largest biodiversity, and they are the ones that produce the highest levels of oxygen, but that doesn't mean that they are the only ones that need protection. The largest forests in the world are actually not the tropical rain forests, but instead it is the taiga, stretching from Scandinavia, throughout all the length of Russia, and throughout all the length of Canada. The mid latitudes are covered with deciduous forests, and they play a crucial role in this parts of the world, both in cleaning the air, providing oxygen, as well as supporting the ecosystems.
Answer:
B. Lower than 100 °C because hydrogen sulfide has dipole-dipole interactions instead of hydrogen bonding.
Explanation:
Intermolecular bonds exists between seperate molecules or units. Their relative strength determines many physical properties of substances like state of matter, solubility of water, boiling point, volatility, viscosity etc. Examples are Van der waals forces, hydrogen bonds and crystal lattice forces.
In hydrogen sulfide, the intermolecular bond is a dipole-dipole attraction which is a type of van der waals attraction. It occurs as an attraction between polar molecules. These molecules line such that the positive pole of one molecule attracts the negative pole of another.
In water, the intermolecular bond is hydrogen bonds in which an electrostatic attraction exists between the hydrogen atom of one molecule and the electronegative atom of a neighbouring molecule.
Based on their relative strength:
Van der Waals forces < Hydrogen bonding forces < crystal lattice
This makes water boil at a higher temperature than hydrogen sulfide.
