According to a recent study the positively charged atmosphere attracts negatively charged spider silk might the electrostatic force play in spider
dispersal.
3)The positively charged atmosphere attracts negatively charged spider silk.
<u>Explanation:</u>
The ballooning of spiders can be explained by the electrostatic interaction between spider silk, atmosphere and the earth. Spiders lack the ability to fly but still they move in the air by discharging silk and moving easily using it. Air drag also plays an important role in the movement of spiders but ballooning effect cannot be just explained in terms of air drag.
The earth is negatively charged and thus any ground based object will have this negative charge. Spider silk is negatively charged. Thus there will be an electrostatic repulsion between any ground based object and the spider silk. Similarly the atmosphere is positively charged which means there will be an attraction between the spider silk and atmosphere.
Answer:
Congress was unable to regulate interstate and foreign commerce; some states refused to pay for goods they purchased from abroad. Congress was unable to impose taxes; it could only borrow money on credit. No national court system was established to protect the rights of U.S. citizens.
Explanation:
Overseas colonies allowed industrialized mother countries to obtain raw materials, which gave them resources to develop products and make profits.
<span>They are parasitic.
They are a type of roundworm.
They have medical uses.
are all correct</span>