The cash crops are the crops, which has more commercial values as compared to the normal crops. The cash crops are essentially grown for the purpose selling.
The Europeans forced the native Americans and Africans to grow commercial crops, which include cocoa, peanuts, coffee, sugar,cotton, palm oil, rubber, tea, timber and tobacco. Out of which, tea, cotton and tobacco were the most forced cash crops.
Hence, the correct answer is tea, cotton and tobacco.
Answer:
B. Smaller fragments travel faster and farther than larger fragments.
Explanation: Shorter molecules move faster and migrate farther than longer ones because shorter molecules migrate more easily through the pores of the gel. This phenomenon is called sieving. [2] Proteins are separated by charge in agarose because the pores of the gel are too large to sieve proteins.
Answer:
The main sources of water in Central Asia are the Syr Darya and Amu Darya Rivers, mostly fed by snow- and glacier-melt from the Pamir, Hindu Kush and Tien Shan mountain ranges.
Explanation:
Answer:
Thyroid hormones
Explanation:
Animals and people exposed to pesticides such as insecticides, fungicides, and herbicides, have shown to be affected by their effect on the thyroid. These chemicals can produce endocrine alterations acting as thyroid disrupters. They affect many mechanisms in the organisms such as inhibition of thyroid iodine uptake, <u><em>interference with the thyroid hormone receptor</em></u>, binding to transport proteins, among others. They cause toxicity in the functioning of the hypothalamic-pituitary-thyroid axis.
There are many studies that associate thyroid diseases with exposure to organochloride pesticides. Significant alteration in the TSH, T3, and T4 levels have been expressed by people directly or indirectly exposed to the chemicals.
