Answer:
1212212221
Explanation:
caus put it in u wille vet
Answer:
The rock is three million years.
Explanation:
First, we need to understand what half-life means. It is a period of time in which the radioactivity of the source decreases to the half of its original value ( the number of radioactive atoms decreases to half). We started off with 1000 atoms, which means that after one period of half time, the number will decrease to 500. So after million years we are left with 500 atoms. After another million years the number will decrease to 250 atoms. After the next half time period, the number will decrease to 125.
So:
1 half time: from 1000 to 500
2 half time: from 500 to 250
3 half time: from 250 to 125
So the number of atoms decreased from 1000 to 125 after 3 half time periods, which is after 3 million years.
Answer:
The UN predicts we will be 9-10 billion people on Earth in 2050. Providing so many people with nutritious foods is a massive challenge and one that cannot be met by simply upscaling current practices regarding food production and consumption. Providing humanity with nutritional food is at the center of all decisions related to sustainable development.
Explanation:
The UN predicts we will be 9-10 billion people on Earth in 2050. Providing so many people with nutritious foods is a massive challenge and one that cannot be met by simply upscaling current practices regarding food production and consumption. Providing humanity with nutritional food is at the center of all decisions related to sustainable development.
