Answer:
7 followed by 27 zeros
Explanation:
The body of an adult man weighing 70 kg is made up of approximately 6.7 • 10 ^ 27 atoms.
The body of an adult male contains approximately 57% water, but if we look by weight, hydrogen is only 11%, while if we look at the mutual ratio of atoms in water, there are a total of 67% hydrogen atoms.
In this way, most of the weight (mass) of the human body comes from oxygen, but most of the atoms in the body are hydrogen.
Answer:
There is an increase in demand for higher quality and quantity of food and other products.
Explanation:
There is an increase in demand for higher quality and quantity of food and other products. So, there is a huge requirement for technological innovation. Investment is needed in research and development to develop crops that are pesticide-free, resistant to disease, and able to face various weather conditions. Vertical farming and carbon-capture technology can be used to meet growing world food demands.
The answer for 21 I think is false
Answer:
Maybe it's because the temperature was lower than the room temperature!?
