Multiple factors were involved in the decision of exploration of Mars.
Mars is similar to Earth in size and it is the next planet. Moreover, evidence was present to suggest that liquid water existed, and may possibly still exist, on Mars. All of these factors led to the planet's exploration.
The 1990s. The internet became widespread
Answer:
instead
Explanation:
"After the Industrial Revolution, goods were produced mainly by machines <em>instead</em> of by hand" is the only logical and grammatically correct answer.
Answer: Investments in oil and gas exploration and production generate substantial economic gains, as well as other benefits such as increased energy independence. While changing market conditions will lead to cycles in the industry, the oil and gas industry will be a driver of substantial economic activity for many years to come. In short terms everything runs on oil like money. So the more oil you have the more money u most likely will make.