Answer:
Intensive family planning.
Explanation:
The varied developments in medicine, increased standard of living, and minimal or no warfare has tremendously increased the earth's population rapidly. Within a span of hundred years, the human population have increased from 1 billion to about 7 billion today.
Over population has become a huge problem to earth and its environment. People need more resources, so there is rapid draining of earth's natural resources. Similarly, people needs homes and places to live, so chunks of forests and jungles are cleared out for agriculture and urbanization. All these human activities are affecting the ecology drastically.
We need to quickly take up measures before it is too late. The most fundamental pratice to reduce overpopulation would be intensive family planning. Every individual should hold responsible to this practice. Family planning is discretionary to oneself, therefore it should be practiced responsibly.
If we can maintain human population, the consumption and emission of pollution would ultimately decrease too. Thereby, the earth would have better air and more green areas.
1) by making certain goods and services available
2) by creating advertisements
3) and by knowing what a consumers wants
Answer:
A. Obsidian
Explanation:
It fits the property described in the question.
It cools so fast that no visible crystal or grain could form. It has high silica Composition, black and glassy. It is also used to make tools with sharp edges
D. Olduvai Gorge
Explanation:
- From 1935 to 1959, Louis and Mary worked hard in several excavations in Kenya and Tanzania, looking for the remains of early humans. Although they encountered many difficulties, both because of the dangerous and inaccessible terrain and the scarce postwar scientific foundations.
- However, the real breakthrough came in 1959, when one morning in the Olduvai Gorge - a region separating the famous National Park from Tanzania's more famous Serengeti National Park - Mary discovered a 1.75 million-year-old hominid skull, later classified as Parantropus boisei.
- This finding was a strong argument that hominids evolved in Africa.
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