Answer:
The answer is C. An electron microscope.
Explanation:
It was used to recognise the value of people (High and Low) and gave opportunities and respect to the high class people and not to the low class. Anyways, this was not a good idea as it discriminated people. In present India, caste system is not used as it causes Inequality.
Hope it Helped!
The spread of disease in Africa has been detrimental to their development. Due to sharing drinking water, disease in just one person can multiply at alarming rates, as seen in the recent Ebola virus outbreak. Another aspect adding to this is hospitals. Poverty runs rampant in many parts of Africa, due to lack of infrastructure and failing to utilize current resources. There are few hospitals, the ones running often having an overworked staff and unsanitary conditions. Until improvements are made to their economy, the unfortunate truth is that disease is likely to stay.
Answer:
4. Solar energy makes food grow. By eating the food we can create a store of chemical energy inside us. We can use this stored energy to do work like wind an alarm clock. The clock now has potential energy.
5. You pedaling the bike is transforming chemical energy, supplied by the breakdown of the food you eat, into mechanical energy to turn the pedals. The chemical energy is potential and the mechanical energy is kinetic
6. As a pendulum swings, its potential energy converts to kinetic and back to potential. Recall the concept of conservation of energy—that energy may change its form, but have no net change to the amount of energy.
7. Renewable resources def: ways to generate energy from (theoretically) unlimited natural resources. These resources are either available with no time limit or replenish more quickly than the rate at which they are consumed
Examples of Renewable resources
• Solar energy.
• Wind energy.
• Geothermal energy.
• Hydropower.
• Bioenergy.
Nonrenewable resources def: A non-renewable resource is a natural resource that cannot be readily replaced by natural means at a quick enough pace to keep up with consumption. An example is carbon-based fossil fuel. The original organic matter, with the aid of heat and pressure, becomes a fuel such as oil or gas
Explanation:
I hope this helps
Answer:
A.
Explanation
Kublai Khan contributed to the fast growth of China's economy by reopening and enhancing trade routes. He reformed China's political structure to have a closed social hierarchy. His dynasty, the Yuan Dynasty (1271-1368), led to the development of Chinese literature and architectural style.
