Explanation:
for 1 it has to be false cause cutting tree ain't good.
for 2 I'm not sure, maybe it's TRUE..
Question 1 The world's population is spread very unevenly. Some spaces are empty or very sparsely populated: we speak of human deserts:
• Cold polar environments are the least populated regions: the ground, frozen permanently, prevents any form of agriculture, the very low temperatures make the habitat difficult.
• The hot or cold desert environments are also not busy: the lack of rain and the strong heat during the day limit the activities of men. The only exceptions are oases.
• The role of relief is more difficult to define. High temperate mountains like the Alps are generally sparsely populated but tropical chains like the Andes have a high population density. However, men have generally settled in the plains, in the valleys (along with the rivers) and on the coasts.
There are also other factors unrelated to land factors that influence population density such as job availability, or even historical factors.
Question 2: Birth rate:
The birth rate (sometimes called the crude birth rate) is the ratio of the annual number of births to the average total population for that year. When the population grows, the contact between people will be more permanent, and it will increase the marriage rate, and thus the birth rate. Age structure:The age structure is a mode of graphical representation of the structure (of age as well as of sex) of a population which constitutes a synthetic image of the past, present and future of the population.When a population resides for a long time in the same place (in favorable conditions, not raising the death rate and without moving), this will vary the age structure by observing an increase in the elderly population.
Answer:
C. Oxygen concentration decreases as altitude increases
Explanation:
Higher altitudes have lower levels of oxygen and decreased air pressure.
Answer:
If the moon has grown to twice its size, the gravitational force of the Earth on the Moon would be twice as much
Explanation:
The force of gravity between two objects is doubled if the mass of one of the objects is doubled.
If the moon has grown to twice its size, the gravitational force of the Earth on the Moon would be twice as much, since the gravitational force is proportional to the masses of both the Earth and the Moon.
<u>Answer:</u>
In comparing stop-transfer and internal start-transfer sequences in proteins, it can be said that both are hydrophobic.
Option: (b)
<u>Explanation:</u>
- Hydrophobic means repelling water.
- Hydrophobic molecules are non polar i.e. that there is no static electric field produce by atoms of molecules.
- Due to this reason the hydrogen cannot form hydrogen bond with the molecules.
- Internal start- transfer process is a transfer process of peptide and moves through the side opening of translocon and the anchor itself in the 'membrane'.
- Stop-transfer sequences in proteins halts the 'process of translocation' and moves out through the 'side opening in translocation' to anchor.
