Because light travels more than 800 thousand times as fast as sound does.
Answer:
The country has committed to implementing actions to reduce greenhouse gas emissions by 43% by 2030, in comparison to 2005 levels. To achieve this target, Brazil intends to adopt measures that include, among others: Raising the share of renewable sources (wind and solar power) in the country's energy mix to 45%
Answer:
B. Aerobic bottom water
D. High organic productivity in the overlying oxygen rich water
Explanation:
A Shale is a sedimentary rock usually formed from silt and clay-size mineral. There are different colors of Shale. The Black Shale is formed under anaerobic conditions. This means that oxygen is deficient in the water where the Shale forms.
A little amount of organic materials is required for the formation of Black Shale and because Black Shale is formed in an environment lacking oxygen, an oxygen-rich water would not be necessary for its growth. Sediments are necessary in the formation of Black Shale.
The massive rain forest is one of the major barriers to travel in the Congo region. The correct option among all the options that are given in the question is option "c". This rain forest is very dense in some places and it is almost impossible to pass through it. I hope the answer helps you.
