A or C. If you rehearse your timing you will get better at it. Also C because it gives you a set time to do that slide after your first attempt.
Answer:
Humans were nomads. Their wandering was mainly in search of food and shelter. When they found that certain places had an abundance of food – plant food or animals for hunting, they stayed on. They observed the plants, their growth and when these food sources diminished, they grew plants themselves, from the seeds they collected. This is how agriculture came about.
When humans stopped their nomadic ways and stayed together, it paved the way for formation of the human social structure. Hierarchies were established in due course.
<span>The energy from the sun is the major source of living for all the being on the earth surface. The transfer of this heat energy to earth from sun is done through solar radiation, thermal radiation, electromagnetic energy transmission and re-radiation. Solar radiation is caused through nuclear fusion reactions where as thermal radiation is caused through a form of light. Electromagnetic energy transmission includes several types of radiations like light, infrared radiation, x-rays and ultraviolet rays.</span>
Answer:
that's all I can do for today
Answer:
work =force *displacement
