Answer: The rock is 2000785 years old.
Explanation:
Expression for rate law for first order kinetics is given by:
where,
k = rate constant
t = age of sample
a = initial amount of the reactant = 800
x = amount of daughter isotope = 600
a - x = amount left after decay process = amount of parent isotope = (800-600) = 200
Half life is the amount of time taken by a radioactive material to decay to half of its original value.
The rock is 2000785 years old.
Answer:
land features: fostered eastern valleys. western mountains and central plains.
water features: black-blue lakes, numerous rivers and swamps.
climate: very cold winters and short cool summers.
location: North America bordering the north Atlantic ocean to the east, North pacific ocean on the west and Artic ocean on the North.
natural recourses: energy, mineral and timber, natural gas and coal.
Explanation:
Answer:
Compression squeezes rocks together, causing rocks to fold or fracture (break) (figure 1). ... Rocks under tension lengthen or break apart. Tension is the major type of stress at divergent plate boundaries. When forces are parallel but moving in opposite directions, the stress is called shear
Explanation:
Answer: The correct option is A. Agriculture and Industry.
Explanation:
The primary activities are of great importance in india, it is thanks to this that india is the second largest agricultural producer in the world. India is the largest producer of many fruits, milk, spices, meats, coconuts, tea, ginger among others. It is also the second largest producer of wheat, rice, sugar and peanuts.
The indian industrial sector employs more than 100 million people. The main industries are textiles, processed foods, chemical products, transport equipment, steel, cement, petroleum, software and medicines.
