Answer:
In uranium-lead dating, for instance, the radioactive decay of uranium into lead proceeds at a reliable rate. Based on the very old zircon rock from Australia we know that the Earth is at least 4.374 billion years old.
And that's how after rounding we know that earth is 4.5 years old.
The answer is 25 percent of females are expected to be white-eyed
Answer:
Yes. Green algae were considered to be the first ancestral organism to be considered part of the Plantae Kingdom. However, the first land plants appeared around 470 million years ago. These plants were a sort of moss like organism.
Answer:
d.
Explanation:
Your body uses two types of molecules for storing energy, the carbohydrates are the main type and its used for short term storage, and for immediate use by the body. And the lipids or fats, are used for long term storage in the body, because they can store more energy in the same volume than a carbohydrate.
Answer:
Explanation:
Rainforests are the sources of minerals, fruits and vegetables. This is because of the fact that the region acquires an annual rainfall of 250 and 450 centimeters. This supports the growth of diversity of floral species like sugarcanes, cinnamon, rubber, medicine and pineapples. Due to the availability of appropriate rainfall the region exhibit highly fertile soil which can support the agricultural practices. The region is also suitable for the mining of inorganic minerals as it is not completely inhabited by the human population therefore, the society will remain protected against the mining hazards. It is also ideal for the construction as the land will be occupied with aesthetic beauty of nature.
On the basis of above reasons the humans have impacted the rainforests on large scale. Therefore, the statement, Humans have impacted the rainforests through mining, agriculture, and construction. is true.