researchers employed by the environmental protection agency
Answer:
Explanation:The region does not experience spin during polar day.
b- Earth is at its closest point to the Sun during polar day.
c-The region is tilted toward the Sun during polar day.
d- Earth’s orbit passes below the Sun during polar day.
Hi!
The correct options would be B & E.
Rock and granite are hard and tough materials that are allow very minor seepage of water, which is close to negligible which is why these materials have been employed as construction material in buildings.
Clay is relatively more permeable to water as compared to granite and rock, but still does not allow water to flow through easily as it has a low porosity and permeability to water.
Soil & Organic Layer (fertilizer), allow easy passage of water through them due to high porosity.
Hope this helps!
Answer:
The answer is 17190 years
Explanation:
Original amount was 5730. To become 1/8 of the original amount, three (3) half life periods will demand because after first half life the amount will become 1/2 and after second half life, amount become 1/2 again (1/2 x 1/2 = 1/4). Third half life, the amount become half 1/2 again (1/2 x 1/2 x 1/2 = 1/8).
For the 3 half life periods we have original amount x numbers of half life periods = 5730 years x 3 = 17190 years
A country that is not growing is characterized by an age structure that is largest among post-reproductive years.
