Under the leadership of Mikhail Gorbachev, the doctrine of Perestroika called for more local control and free-market practices. The correct option among all the options that are given in the question is the second option or option "B". I hope that this answer has come to your help.
The regions of light and unpredictable winds at about 30° No latitudes are called <u>trade winds</u>
Answer: Option A
<u>Explanation:</u>
Trade winds are the latitudes which cool and descend at 30 degree north and are areas with surface winds but these surface winds are light and unpredictable. These are the winds that blow towards the equator.
Trade winds blow at an average speed of about 5 to 6 meters per second and these winds are unpredictable. These winds are warm winds and therefore they pick up moisture and bring heavy rainfall.
Answer:
FALSE
Explanation:
The freshwater refers to all the naturally occurring water on the earth's surface such as rivers, streams, lakes, and glaciers. It does not include the sea and ocean water bodies.
This freshwater plays an important role in supporting the various life forms on earth as well as the ecosystem. Only about 3% of the total water present on the earth is freshwater.
This freshwater is affected by human activities very significantly. The rivers, streams, and lakes are constantly being polluted due to the following reasons such as the toxic chemicals released from the factories and industries mixes with the river, addition of fecal waste and solid waste materials to the water, thereby making the water unsuitable for drinking and other purposes.
Thus, the freshwater present in the world is constantly being degraded and decreasing.
Hence, the above-given statement is False.
B = 0.4
b = 0.6
Explanation:
From the question we derive that;
BB = 16%
Bb = 24%
The gene frequency for BB = 16/100 = 0.16
To find allelic frequency of B;
B = √0.16 = 0.4
Remember Hardy Weinberg rule that all allelic frequencies of a gene must sum up to 1;
p + q = 1
If p = 0.4
q = 1 – 0.4 = 0.6
b = 0.6
Learn More:
For more on allelic /genetic frequencies check out;
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Answer:
Regions with a higher amount of rainfall are those of equatorial regions and those of the low rainfall are polar areas.
Explanation:
- The regions in the tropics and the subtropics receive a significant amount of rainfall while the place at the places receives only 10 inches f rainfall and regions are dry annually with rain occurring only in summer.
- The tropical areas are those that surround the earth equator and are found 23 degrees north and south. As the sun is usually in direct contact and this region comprise of 40% of the surface area and 35% of the earth's landmass. And remains warm to hot and moist year-round.
- These regions are characterized by wet season and thus have most of the cyclonic activity through the year and this impacts the global distribution of water as the movement of the warm and cold water stakes form these regions, along with the variation in salinity.
